I'm looking at visiting a friend in L.A. next year. I was thinking about a wood-stocked pump action 12ga but BUSA.com had 10-round PX4 mags for $27, plus their 4th of July sale so I bought 5 neutered mags and I'll be taking a pair of fullsize 9mm PX4's. I have one of those pistol lock boxes with a cable so I can lock it to the vehicle en route and to something in the house when I get there.
Now I just need to figure out what tools I'm allowed to keep on me while out and about.