Any gas stations that have NFC enabled at the pump yet? The MasterCard site is only showing the cash register icon for the ones in my immediate area and a few random areas within a couple hours drive.
I know this is not a help to you (seeing as you're in CA), but in the Midwest, Meijer's gas stations have NFC enabled on all the pumps and it works great with Apple Pay. I did read that Chevron is putting it on all their pumps in the future, so that might be more useful in your part of the country.