And? Are you somehow obligated to do business with them? When you choose to hand over your money to them, you're not conveying the message that their sandwiches are substandard, or that they provide zero service.
I don't. In the last 10 years, I've only gone there when somebody else wanted it. On a car trip, or with business associates etc. Just enough to make me hate them all over again.
And yes, they tick me off in a way that gets a rise out of me. Charging $9 for substandard sandwiches and providing zero service.