L.F.
there is Rolling Prairie Alliance with pick up at Johns County Community College across the street from the Policy Academy on JCCC campus grounds: http://www.rollingprairie.net/sites.htm
also just learned Hen House does a CSA which I did not know til this year all 12 locations, farthest south seems like 135th street but it might be better for you...but by this time in season may be too late FYI...: http://www.henhouse.com/growers_alliance_csa/