Too me it doesn't appear to be a "burn" and I've cleaned thousands of cars back when I was in the detailing business. Maybe you could give us some kind of pic to reference the actual size of the spot. It looks like more of a chemical spill in my opinion, perhaps a thinner of some kind, or maybe some type of acid. Either way take it back ASAP and get a couple of estimates from body shops that you trust to work on you baby, because it looks like it's more than likely going to need to be re-finished.
Good Luck,
John
