Sounds similar to my situation back when I first got my car.
I also had my car for about a week, and decided to spray some wheel cleaner on my rim....while the rim was still hot.
It stripped the clear coat off and now all the rims look dirty, even though they are clean. I know the feeling very well and I still get upset at myself because of that.
Luckily for you this sounds like an easy fix especially since it's only one rim. You might have to ride around with the spare for a day or two while the work gets done. Do you have chrome rim? or do you just have the non-sport rims?
Their are a couple of repair shops in my area in Charlotte, I would imagine there should be some in ATL since it's an even more popular city. Doesn't sound too bad breh!