Well, I’ve never heard of Perma Plate…probably just a simple sealant sold by the dealership. Your dealership is dead-wrong…new cars are NOT supposed to come with swirls. These were most likely caused by it being washed while on the lot, or in their “prep department”. Most dealerships have no clue what proper paint care is about, therefore their natural reaction is simply to say that’s the reality of paint. Unfortunately you’ll probably have a fight on your hands but I wouldn’t hesitate to ask that their district manager for Toyota gets involved if your dealership fails to take care of the problem. I would not have them do the work though…insist that a true professional is hired (which may be tough to find). The best of luck to you…