Holy crap!! 
The stuff that looks like rail dust spots? I got that all over mine after a 2000 mile christmas trip to iowa and back. The only way to get rid of that junk is to clay bar your truck.our province is using similar stuff on our roads now. have you noriced the small brown dots on your paint?
In Texas they call that stuff triple shine conditioner. I guarantee it is the same stuff...
yeah used in cali comes out in pink blue and green was a ***** to get off the gel coat on my fiberglass.In Texas they call that stuff triple shine conditioner. I guarantee it is the same stuff...