I suspect just by looking at the kit you really wanna refrain from washing the car until the fogginess works itself out. The adhesive is super strong so it shouldnt be a problem. The one piece of advice I would give is wait until its warmer outside to do this. I did it at night itwas around 55degrees in my garage and I had to heat the film with my heat gun quite a bit. Warmer weather will also help the curing process.