Mr. Handy Man was here and doing the last of the shade job. Then he tried to help my car, but there is no helping the problem, I guess. Some of the paint on the roof has, what he says, oxidized, just in two spots but it looks like sandpaper and not very attractive. Why it only happened in those two spots is anyone's guess - there are no other problems on the entire car. He used something called a clay bar, which usually works, but didn't because apparently the paint they used has clear coat or something. If anyone has any clew how to deal with this problem, please let me know.