People in the know, ask all to hold off on UOC at this time. Legal challenges in front of SCOTUS will hold the key to incorporation of the 2ndA into the California Constitution. The ruling should be published in July.
WE DO NOT HAVE 2ndA PROTECTION HERE. THAT ARGUMENT HAS NO LEGAL STANDING IN THIS STATE!! That cannot be emphasized enough.
There are many dangerous hurdles to UOC: Ignorant LEO's, GFSZ's, inevitable "man with a gun" calls, etc.. Each can and will have you in cuffs and possibly stuffed. Been there, done that, did not get a T-shirt.
If you must, please carry as a group. Logistics of detaining or arresting a dozen people is usually too much for most LE Depts, and is actually less intimidating to the public. Be sure to print many copies of the carry pamphlet to hand out to the curious.