If you own a gas station, why not?
How would you convince some owner to try this out? He'd have to be a bit supportive and have a basic understanding of bitcoin to being with..
I don't own a gas station, I just thought it would be a perfect avenue to get awareness to everyone.
Like anything else in business, you have to propose it and show the benefits for their business model.
I'd like to see the payment processed at the pump though, not in a POS system inside. To me the biggest hurdle to that is the equipment setup, particularly integrating with the station's current pump control system (I have no idea what this is, but I'm sure it's computer controlled).
I imagine the overall product to be a touchscreen LCD/OLED with a pinhole camera (a cheap tablet might even do the trick) dumb terminal at each pump which talks to a server inside the station. For stations which might want a low-up-front investment, they could simply have 1 or more centrally-located terminals instead of 1 per pump.
The server has to integrate with the current pump system to tell the pump how much fuel to allow--this is the tricky part, as I have no experience with this. It also checks the blockchain for funds available, to ensure the customer can pay--no holds on credit cards, which is nice.
The screen is where the customer handles the prepayment. Verification of funds is easy, the customer initiates the process, and the screen asks them for their wallet. Customer could use a paper wallet (make your own gas cards!) or their smartphone/tablet, and just hold it up to the gas pump. The server instantly checks available funds and lets them know they're good to go.
Then they can pump until they're full, or simply specify an amount (in litres/gallons/$) to pump. No need for a receipt, and it's all done instantly.
One additional beauty of this is that they don't need to use their cash, they can use something they mined, or otherwise something which (hopefully) grows in value over time. It's like a semi-self-regenerating gas card.
I just see this as a great avenue to get cryptocurrencies out to the masses. I have this and other great ideas, I'm technically inclined and could make the server and get the hardware setup, I just am spread too thin to fund such a venture. I'll end up doing something similar for my small business and see how it goes.
Maybe we can all build on this idea and get some interest? Bitcoin is by the people, for the people. Ideas for marketing it should be similar. I think this is a good one.
Of course maybe that's just me lol.