The shelter in place strategy is viable. Going to Irwin was a good plan. Going to the colony for disaster recovery from the double nuke is a good plan. But, LA is not really a good place for long term recovery. They really should seek out a place with a strong fresh water source. LA is pretty artificial because it is supported by a huge amount of logistics from the rest of the country. That support has collapsed.

They really need fresh water and sea salts. We are aquatic apes...

The theory is not perfect and I do not even want to talk about discovery channel mermaid crap, but the aquatic ape idea is interesting,..

http://en.wikipedia.org/wiki/Aquatic_ape_hypothesis

The hive mind crackpotted this and came up with the Ant Ape stratagem. No doubt but it was fun.