They ripped me off.
This station charged my credit card $60 for $48.99 worth of gas. I didn't check the receipt before I drove off, my mistake.
Apparently, they think it's a legitimate business practice to charge you in $20 increments and then you have to go into the store and get back the extra that they charged. So if you bought $5 worth of gas, they'd charge you $20 and you have to go in to get $15 back.
I've never encountered this before at any other gas station, and I think it's criminal. STEER CLEAR OF THESE JERKS.
AVOID unless you enjoy getting ripped off.
Most Expensive Gas in the City. Only an idiot would fill up here and put money in their pockets. Why is there gas so expensive? Oh yeah, it's SF a city that loves to stick it to the consumer.