Remember, these laws were instituted because enemies of the US started shooting up a gun-free zone. Just think what sorts of gun control California could enact if the Chinese army started a full-on invasion of the US mainland starting in California in an outright declaration of war!
Probably be no civilian sales of ammo and turn in all your weapons at the nearest armory. NorCal probably already turned theirs in. Right guys and gals? Or was it that dang boating accident deal.