Lowes Foods has a kinda/sorta CSA! Their program is seasonal and started in June, but it's not too late to participate in the three week program or week-by-week. The cost would be about 2.00 per pound for the 6 week program, about $2.16 per pound for the three week option, and $2.32 to purchase week by week. Depending on how many more costly items (like blueberries) are included, that's very comparable to the farmer's market, and includes the convenience of making one stop for groceries.
Lowes has partnered with a number of North Carolina farms and with Pilot Mountain Pride, which is an awesome aggregate organization of small farms in the Winston-Salem area. Formerly dependent on tobacco production, by banding together with "Pilot Mountian Pride," farmers have been able to retain employment and increase the viability of producing local food for their community. This video about their project isn't perfectly polished, but it totally inspires me about the possibilities for local food and small farmers.