Proposition 2, which was approved by voters in 2008, was responsible for great improvement in the existence of egg-laying hens. It's raised the price of a dozen to about $3 --25 cents each.
Here in Indiana, I was shocked in Walmart the other day to discover that it is possible to buy a dozen large eggs for as little as 95 cents -- eight cents each. About 80% of the non-organic eggs on display were in this range, and the California-compliant ones were $2.79. Organic ones were mostly California-compliant and cost more.
I'm willing to pay a quarter for an egg, here or there. Somehow, the pig industry will survive (assuming there's enough water, about which I've begun to wonder). I think I read that 2/3 of California's pork comes from out of state, and that there will certainly be providers.
One of the surprises about Indiana is that pork costs a little more than in California, and beef is a LOT more, so much so that some supermarkets have ads that read, for example, "RIB EYE STEAKS 8.95" and then in small letters "8 oz portion."