I had something that i think is similiar when I first arrived home on the 12th of October. I washed clayed and went over the area with AIO by hand. None of these seemed to make much of a difference. I also had terrible water spotting which did not seem to change much after this whole process. I used a 1:1 mixture of distilled vinegar and water spraying the areas involved in 2'x2' sections not much of a difference, if any, could be seen.
After a day of working on this I decided that these spots were caused from dew attracting dust in the morning then the dew drying from the Texas sun. Literally burning the dust into the vehicles paint.
So the next day I decided to use another approach. I started with FPll with a LC white pad. Then I used a yellow pad. No change.
Then I used
Poorboy's SSR 2.5 with a white pad then a yellow pad. Small changes but still there.
Finally I used Menzerna IP with Propel's orange pad(I was running out of pads that were clean) This had the desired results. Although not perfect. I took my time and got 90% of the problem areas to look fairly good. I then went FPll and LC yellow pad. Then FTG and LC white pad and topped it off withAdam's Butter Wax by hand.
Am still fighting the water spots to this very day. Went over the entire truck again today but will post that later.