Just painted

OP, I just got my Dart back from being painted and was advised not to put anything on it till the paint has a chance to cure. The reason I was given was that while the top of the paint is dry to the touch, underneath is still soft and curing, that anything you put on top could leave an imprint no matter how light or heavy the cover is. I don't know how accurate that is, but I spent too much to take a chance. He especially cautioned me against placing anything plastic over it. I guess that doesn't breathe enough to allow the paint to offgas.

That being said, I would like a more definitive answer, other than 'wait as long as you can before covering it. Its been 3 weeks now, its a bit dusty but the weather is holding out so I'll leave it uncovered. Hopefully somebody with more experience will chime in soon with a better answer.