wtf?!!!How could someone do that?! Anyway, I'd take off the strings and use a wet towel. A bit of water won't hurt it. I used to live on a boat and a drunken friend dropped my acoustic in the water. I just rinsed off the salt water and dried it with a towel and let it dry for a couple of days. It was fine.
I'm wondering as well if it was done on purpose? Lame.
Goin' home, goin' home
By the waterside I will rest my bones
Listen to the river sing sweet songs
To rock my soul