MMM,
I use a dehumidifier in my workroom, but generally avoid painting anything if the humidity is very high outside. If I were you, I'd set the body aside somewhere that's well air conditioned, under a box to prevent undo lint collection, and give it a few days. The problem may correct itself. If it doesn't............... well, if it doesn't, hopefully someone else will chime in here that's had to deal with a finish that stays sticky.
If you don't get a satisfactory answer, I suggest going to the "Auto", or "General Modeling Discussion" groups and ask.
Hope this helps some...
Frank