From what I know of California's weapons laws, they stink. But, my actual experience there has been OK. I recently camped out in the Redwood Forest (not in a national park, but a national forest) and a National Forest Service officer visited my campsite. He asked a few questions, but they were mostly aimed at the fact I didn't have a campfire permit. He overlooked the fact I didn't have one since he deemed my firepit safe and I had all the right answers. He also didn't bat an eye when I pulled a Dogfather and 6.5 Reg out of my pack. He even told me about a little known water fall for the next night of camping.