One of the locals might comment but I am not aware of any place that you can launch off the beach in the Wildwoods. The only exception is during the Division 11 Wildwood Hobie regatta in August see
http://www.div11.hobieclass.com/.
There is off the beach Hobie sailing available at the south end of Stone Harbor. They have free parking and good beach access here but you might have to buy a daily beach badge. The local Hobie fleet also has a sailing beach in Town Bank on the bay side by the ferry, see
http://mysite.verizon.net/HobieFleet443/.
Rich