So went to the dealer today...
Went to service dept first to see "my service writer", (gave her some detail supplies last time). Showed her the problems, she showed me where it was starting at top of vents as well. She then got service manager to show him, he noted it and directed us to body shop.
She would only speak to body shop manager. Showed him the problems and made a point of telling him how particular I am...
He said the correct way of doing it was to remove both panels, then vents, prep panels, pain, let cure, then replace the vents, then replace the panels on car. He said the car won't be any where near paint booth to avoid overspray.
He told me He wanted it for at least 5 days to make sure it's done properly.
He wrote in big letters across work order DO NOT WASH
He had to order consumables and clips etc and is pretty well booked...... So appointment made for Sept 12.
