Has anyone had issues with tire spray not coming off the paint?

I have a new Yukon Denali and there are these yellow spots that appear to
have come from the tires. I have never had a problem removing it on any
other vehicle. However, the tire spray that I can't remove is on the plastic
pieces of the vehicle such as the molding? I'm not sure what it's called
exactly.

I brought it to a friend who owns a body shop. We tried Prep Sol and even
tried to wet-sand and still nothing.