Ps vita froze after locking screen in PSN store?

Okay, so I got a PS Vita on December 10th 2013 (Only a week ago. ) for Terraria.

I've been downloading apps to the memory card and playing Tearaway, which I bought at GameStop. I've been loving this system so far! It's absolutely gorgeous, powerful, sounds great, and has a future game library that's looking really great! (Minecraft Vita edition! Woot!)

However, today I had a very strange issue.

Terraria on the PS vita is supposed to come out today. So I went to the PSN Store and searched for Terraria to see if it came out yet. It didn't. I put the system in lock mode and messed around with my iPad for about an hour.

I decided to check if the store refreshed since, and unlocked my vita. I searched again and once more the system told me it couldn't find any matches for Terraria. Darn. I locked it again.

Okay, so here's the point. Another 30 minutes or so later I became incredibly anxious to play Terraria on my Vita and went to unlock the system again to check if it came out once more. To my surprise, my system wouldn't unlock! The screen was showing the lock screen image with the page you have to flip, but as many times as I tried it refused to unlock. It let me lock it again and unlock it with both the ps and the power buttons. Still wouldn't let me unlock. The system was responding to the buttons (power and ps button. ) but the touchscreen refused to work. I was scared it was a problem with my touchscreen.

Then it gets weird. I held down the power button, and the power off screen appeared. Again, I was unable to tap any of the onscreen buttons. But this menu let me use the joystick to select turn off. Then I pressed X to confirm my selection and the system shut down. When I turned it back on, the screen worked just fine! O.o It let me unlock the system and start various apps, as well as typing on the keyboard, swiping, multitouch, and holding. If it was a broken touchscreen, why did it suddenly work?

So I thought it was weird but I figured as long as it was working I had nothing to worry about. I started the PSN store again and searched for Terraria once again. Not yet. I locked the system. This time I wondered if it would work or not so I instantly unlocked it again to see if it froze. Sure enough, the system's touchscreen was frozen and I had to power it off with the buttons again.

I restarted it and attempted to reproduce my steps to see if I could get it to freeze again. It won't freeze! I searched for Terraria and locked the system several times, and it always unlocks and lets me use the touchscreen just perfectly!

So, my question in brief is, what the heck happened? Is my touch screen broken? I treated it with care and it's only a week old, so I doubt that I broke it. And after a reboot it worked fine! So unless something didn't make a connection every time I tried to unlock it, the touchscreen is fine!

Did the system freeze up? The icons (Wi-Fi, 3G, battery, time, etc. ) were animating and changing so this is also unlikely.

And lastly, was it caused by the PSN store? Or was it just a coincidence that it happened in the PSN store after searching for the same thing?

Thanks for reading! I really hope it was just a weird software glitch and not some mega hardware error! But if it was I'd like to know because my system is still under warranty as I got it just a week ago.

If you out the console in sleep mode without quitting a game, app or the store it can corrupt your data on the memory card just as if you shut off the console while loading or saving a game so never do that. Next time just wait until you see the post on the playstation blog ( use your vita browser ) or wait until late afternoon to check the store and if the game is not added yet quit the store before you go to sleep mode or turn the system off

Now, hopefully this is an easy fix and you just need to reset the console, it probably just glittched the file system and had trouble finding a file it needed to start up properly
turn the vita off
remove the memory card and game card
hold R, the home button and power for 10 seconds
the vita should power up and tell ask you to perform a file system restore
this takes a few minutes

now turn it off and put in the memory card, it should turn on correctly now and not give you any problems, if it doesn't you may need to restore the psvita from the settings menu ( if possible ) or call sony and use that warranty, find your receipt because you need it for warranty claims