I live in the Sacramento area. I travel from Redding area to LA area to visit family and friends. I literally have yet to see a Hillary sign in a yard. A very few bumper stickers.
You are right about the coast, it basically dictates everything for CA, but this election seems to be different. Remember Californians love their TV stars, and most of the uninformed CA voters have seen Trump on TV....
Heck, I even heard about people visiting SF and seeing Mexican Americans with Trump shirts on. And recently, on coming out day in SF, there were tons or rainbow apple posters put up, where the bite out of the apple was Trumps profile with time for change underneath.
Best election ever!