However, where I live everything at gas stations is really expensive (like 3 times the super market price), because they don’t make a lot of profit with gasoline. Most of their profits likely come from car services and selling stuff 24/7. I don’t know how it’s in the states, but most shops here open at 7-8am and close at 7-8pm and are closed on sundays, so if you need something late at night or on sun-/holidays you drive to the gas station.
Tbh, the only things I ever buy there when every shop is closed are alcohol and tabacco (and some times paper and filters for weed)