Put it in a low oven. Don't set it above 250 or you'll definitely ruin the camera! and it'll be dry in a few hours.
If you don't have a few hours to wait, the microwave will do the trick in 5 minutes, but the microwave will erase any pictures stored on the camera.
Your call.
Call up and say you smell a gas leak. They'll send a guy over ASAP. Then when he gets there tell him you were just fooling and since he's already there he may as well read the meter.