I saw a thread on a different forum (can't find it for the life of me) that said it's pretty much impossible in LA county unless you are LE. They all said the easiest in that area is San Bernadino County. Of course, "easy" by CA standards may not still be very friendly. Good luck.
Edit: found it --
http://sigforum.com/groupee/forums/a...35/m/315105334