Anything near the coast is liable to have worse salt issues than from the mountains. Central NC is a safe bet, not much salt here.I wouldnt worry too much if its on the Eastern side of the state, say Charlotte / Greensboro east, not too much snow and salt. If its out in the mountains, then yes it could have a lot more rust on it.
It really depends where the vehicle spent most of its life. They might have moved down here from upstate New York and it could be trashed. Carfax, and see where the vehicle was located most of the time.
If its around Wilmington, let me know and I'll go check it out.
Anything near the coast is liable to have worse salt issues than from the mountains. Central NC is a safe bet, not much salt here.