I am in the Bay Area, California as well. Live in Fairfield. Travel to Roseville every weekday. That is close to Auburn/Grass Valley. I go through Vacaville, Dixon, Davis, Sacramento, to get to Roseville, and I also have relatives and friends all around the Bay, so I can get to Concord/Walnut Creek, Danville, San Ramon, Oakland, San Francisco, The Peninsula, the 880 corridor, etc. So almost anywhere in the Bay Area isn't a problem. One of the reasons I moved to Fairfield was it was centrally located.
I will be taking a trip to Disneyland (Anaheim/Los Angeles) leaving February 12 and returning February 15th. However I am taking the plane. Handing hatching eggs to the baggage handlers would be worse or the same as the USPS. I am not certain if I can take eggs with me in the cabin and keep in mind they go though the xray machine. Just a thought. Not sure if it is a good one. They may think they are mini egg bombs or something..... (Just kidding of course). But my point is if someone does know for sure I can take some down to LA or bring some back.