I ran Ca for years, chain up take'em off, chain up take'em off. Go out a get the cheapest set of single drive axle cable chains you can find and carry them just to show the boys at the chain control stop. A friend of mine got wrote up for not having a set for his semi flatbed and there wasn't even any snow anywhere.
Best advise is to always check the Cal Trans road condition site and don't go if they are talking snow.
On I-5, I-80 and I-15 if two snow flakes hit the pavement they will throw up the chain signs. Reason is the idiots can't drive in snow or ice and don't understand that you can't go 80 mph on snow.
And you only required to chain up the outside drive axle tires.