Original post by: Joshua Dworning ,
The water probably damaged the digitizer. I would disassemble it (if you're tech inclined) and dry it out that way. Unfortunately rice doesn't do much to actually pull water out, or prevent corrosion from forming. If the device is turning on though, that's a good sign. You might just need a screen replacement (new Glass/LCD/Digitizer). I've had that fix very similar problems.