5c Display Wonky, Touchscreen Unresponsive

When I plugged in my 5c to charge something like eight hours ago it was fine. When I went to get it just now, the display looked like this.

And the touchscreen was unresponsive. Power/home reset didn't result in any changes. Have not yet done anything further prior to asking here, except plan on visiting the local Apple Store tomorrow.

Seen it before? Know what it is/what the solution's going to be?

Thanks!