Used tire shop in Atlanta area?
 

I ran over one of those white, domed reflectors on the ground last night (~35mph). Everything seemed fine until this morning, when I discovered the tire was flat. I don't see any obvious deformities to the wheel but there is an obvious tear in the sidewall on the "2" in the attached picture.

1) Any recommended shops that won't scratch/damage everything in the Atlanta area?
2) Any possibility with getting away with a patch as the tire has less than 10k miles?
3) Anyone with 2 used tires they'd like to sell me?

Thanks,
FS