I just prepped painted and installed a McClaren-style lower grille on my black LS, using automotive paint and clearcoat. After doing so, I noted a tiny scratch and, without thinking it through, shot it with the same paint and clearcoat. The place I touched this up now appears chalky white. I did the initial painting inside and I'm guessing the reason it turned was that it was around 33 degrees when I touched it up. Am I correct in assuming the temp is the problem here? If so, I'll hit it again when it warms up to the mid-fifties on Wednesday. Not sure if I'll have to resand or not. ( I sure don't want to uninstall it and take it back inside to do so.) Opinions?