American state laws are a mess when it comes to beer shipping. In the northeast certain breweries do ship out of state, but that is pretty limited to the bigger ones (Tired Hands & OH do limited out of state shipping but not to CA). Your best bet would be to either (a) bring some good British beers or (b) pick up a bunch of Monkish in Torrance, and try to do a facebook trade with someone in those states. Most states have dedicated facebook groups for trade and often the largest/most hyped brewery has a fan page where trading occurs… though not sure how active those are in the four states you are missing.
It would also be worth checking the websites of the breweries in those states to see if any ship. But that requires a systematic combing. Also, I have had friends arrange unofficial shipments in the past, but that might be slightly technically illegal.