Wet piano keys

[Phil Ryan]

Although I live in Florida, the piano in question was wet by a leaking 
air conditioner vent which dripped water on  the keyboard (Yamy P22).   
The water did not affect the action.

The keys are still damp and sticking big time!  What's the best way to 
dry out the keys (outside the piano) to minimize warping and keep 
bushing-easing to a minimum.  The bushings seem to be staying put.  Any 
helpful hints?

Phil Ryan
Miami Beach