That looks like a major job!
I think if that were my car and I was a bit paranoid, I'd be concerned about two things:
- 1.) Finding little yellow spots where there shouldn't be little yellow spots
- 2.) If the paint on the areas rubbed down didn't adhere properly, what about all the other yellow areas that aren't rubbed down?, e.g. behind the rear bumper, inside the doors, underbody sections etc.