I'm in Virginia, but I'm pretty sure NC has Petcos. I think Charlotte is a big enough city where they would at least have a few specialty pet stores. Have you tried googling pet store near me? Or the local Craigslist for breeders?
I found one place that sells live, but they were not healthy looking. I've googled, and searched CL. Kind of shocked at the lack of vendors in such a big city.
Sorry I can't help with Charlotte other than to try Petco that is where I pick up a few mice for my picky eaters every weekend. If you're not again a little bit of a drive Frank at Cold Blooded Novelties is in High Point which is a little over an hour maybe an hour from Charlotte. The nice thing is his location is also the ware house for Reptile Basics so you can grab supplies while you're there and check out his snakes as he was supposed to be moving them to their new location.
Last Place on Earth on North Tryon is the only place that sells feeder mice. They sell pinkies, fuzzies, adult mice and adult rats. Unfortunately no rat pups or large mice.
Last Place on Earth on North Tryon is the only place that sells feeder mice. They sell pinkies, fuzzies, adult mice and adult rats. Unfortunately no rat pups or large mice.