To dry out wet electronics like this, I open any covers and leave the device in a warm place overnight. Anyplace that's not so hot you can't keep your hand on it. I've used the top of a hot water radiator, on the heating furnace, on a water heater, over or beneath an incandescent lamp, etc...
Another option is to flush it out with 91% or better isopropyl alcohol and then dry it over low heat. May seem weird but electronic circuit boards are routinely washed distilled water and/or alchohol during production.