Wow, how f--ng entitled can you get?
This isn't complicated, you pompous moron: If you want to use this gas station's services, you're going to have to make a purchase. Squeegees and window washer and paper towels cost money. Maybe that doesn't mean anything to you, but it sure as hell means something to the guy who is operating this station on a paper-thin profit margin. He doesn't run this place to give you somewhere to pull into, take up a space that could be used by paying customers, and consume products you aren't paying for. What the actual hell- do you casually walk into stores to use the restrooms, swipe sugar packets from 7-11 and ketchup from McDonald's and respond "oh I've already got coffee/food, I'm good, I don't need anything thanks for asking?" You really do think the world revolves around you and your virtue-signaling hybrid, don't you?
By the way, the hard-working gas station attendant who will never be able to afford a car like that wasted way too much time arguing with you about the use of HIS squeegee- much more time than I would have. About the second time you repeated "no gas no squeegee?" I'm pretty sure I would have responded by telling you to pile your privileged ass back into your car and hit the road. Instead he played along, and you thanked him for his patience by buying fifty cents worth of gas and giving him a smirk which was essentially a middle finger. You could have at least bought a candy bar, but I suspect you would have insisted on carrying off fifty napkins and a plastic knife for your patronage.