Do we know WHEN they went out of business? Because 2007, it wasn't uncommon to see gas at even $5.10 per gallon.
Also, on the day after 9/11, in New York, some gas stations went from the (at the time) common gas prices of $1.15 and made it as high as $5.00 per gallon. Then, the next day, president Bush had made that practice illegal.
So, if they happened to go out of business on 9/12/01, or anytime around 2007, this price would have been seen as low.
You haven't been to North Augusta where, during the freeze of 2013/2014 many stations jacked up prices well-beyond reasonable and are now, no longer in business.
They ran out of snacks. No one knows why. However, everyone knows that the gasoline is sold pretty close to cost, and the snacks are the real moneymaker.
Gas stations make virtually nothing on gas sales. Almost all of the profit goes back to the gas company. It's the reason everything in the station is so expensive.