Not sure what car insurance you have but ours just started offering free tow and alot of other things AAA offered so we are letting our membership lapse. Maybe call your insurance company first to make sure they don't have something like AAA already.
Do you Facebook? If so, 'like' their page and put up a post asking if there are any membership discounts. An agent will ask what area you're in and let you know if there are any promos for joining. They are real quick to get back with you on there.
Is their facebook page American Automobile Association? If so, I can't send them a message and there are very few posts....not sure if I am doing it correctly though!