Yes. We have these, they are generally at gas stations! But as I said earlier, I have never been more than a few blocks from a corner store. They are not groceries though. Beer, diet coke, the Wawa by me has also reasonable food and fancy coffee. But if you need flour and produce, no. It's only stuff you eat without cooking, ready to go things.

The Walgreens does have more regular stuff, cat food and tape, shampoo, etc. So may be closer to what you are thinking of. There is one of those near me also, but one vs. 3 gas station shops.