I have not seen a single gas station in California that does not accept credit or debit cards for 10 years, let alone in the Bay Area. If they do exist, it’s most certainly a tiny minority.
FinTech revolution is happening in China, not so much the US/SV.
My AM/PM here in San Diego, Calif, has debit card acceptance at each pump.
The AM/PMs
I suspect those gas stations are actually Arco.