Did a full clay bar and wax job about 3 weeks ago and she was looking and feeling perfect. Washed her up the other day and noticed some kind of fine mist had coated the paint while I was drying with a micro fiber towel. Surface felt like 200 grit sandpaper. After a 2nd wash nothing changed so I decided to use a clay bar again and it immediately turned black. It's a really fine mist of something but not sure what it is or how it happened. I was thinking trees or tar. I have been driving through a lot of hwy road work lately. Any ideas??? I'm gonna try a little alcohol and de-greaser just to see if it's oil based but haven't had a chance yet. I don't think it's any type of paint over spray.