Yep, Red Bank is the biggest local meet. We do it on the second Saturday of every month, you just missed the last one.
https://www.facebook.com/groups/112747978815355/
NJ BMW CCA also does autocrosses, the next one is this Sunday in Bridgewater.
http://njbmwcca.org/
I'm normally in Shrewsbury but I'm in Sea Bright for the summer.
Dave