I'm with PeterG, that should come out with a clay bar. They call it industrial fallout, but that'* not necessarily what it is. It could be something like brake dust. My wife and I both owned white cars at the same time a few years ago, and that stuff drove me crazy, so I swore never to get white. Even on our blue Mountaineer I see it on the lower portion of the truck which is a gold color.
If you are willing to spend $130 on a detail, I would advise not to go to a dealer. Dealers are notorious for doing crappy details. I would suggest going to www.autopia.org
It'* a detailing website with tons of excellent detailers that can do amazing work. I would try to locate someone in your area on that website. Otherwise if you are interested in doing it yourself, for about twice that much money you can buy a polisher and all the necessary products to do it yourself for years. Just join Autopia and start reading.