If you run the slide in partially will it raise up enough for you to pull it up?
Since it is wet already the staples will probably pull through.
If not try what the other poster said, close it up and turn on a dehumidifier for a couple of days.
I have a Soleuis that I got from Lowe's that I use in mine in the summer, it is cheaper to run than the air conditioner, here on the coast it is very humid, this one pumps out some days over a gallon of water and is very quiet. I know it helps dry the carpet, after shampooing I can run it and the carpet dries very fast.