ok, the first thing you have to do is dry off the essential parts. if you have a air hose, blow out as much air from the spark plugs and distributor cap. also blow some air around your MAF sensor near the airbox.
If you don't have a hose, you've gotta let it dry-off naturally-leave the bonnet up and let it out for some sunlight. If it's cold outside like it is around here, leave it in the garage and let it dry out by itself. eventually it will vaporize.