Happened to a buddy of mine about two years ago while he was in B'ham for work for an extended period of time. He'd been a loyal customer of Natchez while a life-long resident of WV but got more than a little bent out of shape when he tried to purchase some ammo with a WV-based CC and have it shipped to his temp address in B'ham since he couldn't readily reload while 700mi from home.
Sadly, that is not an uncommon practice for some large businesses to have "exclusivity" or "do not compete" arrangements built into some of their contracts so that they can't sell to customers directly and potentially undercut their wholesalers, etc., in certain states/areas. However, given the availability of competition at arguably better prices (at least when they have supplies of the product you want/need), Natchez isn't exactly a GREAT place to conduct business any more unless you just happen upon something that's an incredible deal or can't be had elsewhere.