I was at the self-serve gas station in the rain watching an electronic ad that said "come inside for a cup of hot coffee." I didn't want to go inside. That's why I'm swiping my card outside. I don't want to interact with a human. I don't want to lock up my car. I don't want to stand in line at the cash register.
The gas station that figures out how to serve a decent dollar cup of coffee at the pump will do a great business.