Get tires with a snowflake on the side, and any old pair of chains hanging around, and you'll never need to actually put the chains on the Jeep in California. At the chain control area you just hold up the chains and point to the snowflake on your tire (that signifies it's snow-rated, like a BFG AT) and you're fine.
I investigated putting chains on my Jeep, I happened to have some chains that were supposedly the right size from another vehicle. They were low profile chains and they looked like there'd be enough clearance except maybe when flexed out -- if they'd fit on my tire to begin with. They didn't fit, even though the package said they were supposed to fit my size tire. The big sidewall blocks on the BFG KM defeated it. Apparently tire chains aren't designed to consider weird stuff sticking out the side of tires, who woulda thunk it?
So anyhow, I have a set of chains to carry in my Jeep in case I hit a chain control area, and that's all I need in California (if I put snow-rated tires on it anyhow)