Walmart carries Boca products, Morningstar Farms, and Amys if you are looking for veggie burgers and other mock meats. They also carry tofu, soy, almond , rice and coconut milks. Lightlife products which are deli slices and So Delicious vegan ice cream. Of course Walmart has the usual staples such as beans, rices, fruits, and veggies. I am not familiar with Food Lion though but if they carry Tofurky or Gardein products, definitely try those out.
Check out
www.happycow.net to find some local vegan restaurants and
www.veganeatingout.com is also a fantastic resource that lists what vegan options you have at certain restaurants. Where in NC will you be? Some areas are really vegan friendly and have an impressive veggie population.