clear coat help needed

[sogwife.livejournal.com]

I've been painting some figures for sale, using cheap Walmart (yeah, I know, so sue me) clear spray paint for the finish. On just one piece, it's coming out foggy. When I handle it, the fogginess seems to lessen, but not go away entirely. It is a little cool outside where I'm spraying. Is this a tempurature thing? If so, why would it only affect one peice? Is it likely to clear up if I let it warm up inside, out of the breeze? Should I just repaint the peice and try again? Is the moon made of cheese? Am I asking too many questions?