I don't like this gas pump credit card thing at all.

Most stations around here (...and I'm not nearly "big city") have fairly long lines at the register.

gas is actually one of the few things I do pay for on a card, simply because I know I can get it full and not have to worry about what I posted earlier.

RE scanning for bluetooth- you'l likely find everyone's phone that's also fueling up!
...also if the devices have already been paired, they may not show up at all in a scan of available.