Well I know ASFs exist in North Carolina I believe, but further down than that, I do not know. I feel like there should be a lot of breeders in FL, since there's a lot of hungry reptiles there.
If worst comes to worse, you can order live ASFs to be shipped to you to start a colony. But I think you should be able to find them close enough to just drive. You can try looking at mouse groups on FB. Asking there should help.