Damn California law is insane, I had to read over 10 paragraphs of information to get to this.
12031. (a)(1) A person is guilty of carrying a loaded firearm when he or she carries a loaded firearm on his or her person or in a vehicle while in any public place or on any public street in an incorporated city or in any public place or on any public street in a prohibited area of unincorporated territory.
It would appear to me that the legality is determined by the county code or charter and what they say about firearms. and of course you should probably ask a lawyer as there is so much in the firearms law that cross-references and contradicts each other.
I can't believe this, just one of those paragraphs in that law section feels longer then the firearm codes of WA and OR combined.....
I think you should ask Condition 3 or one of those people, this is way to complex for my mortal mind to comprehend.