Meh, just let it dry out :P, an old LG phone (Flip phone) of mine went into the wash once, while turned on all i did was let it dry off over a few days, and its still works :P or at least it did before i sold it.
So dont bin it, let it completely dry out first.
Another thing the longer it was in the wash the more likely it is to be shot, But you never know.