Uh... what?

Today while filling up the car at the gas station, I noticed this curious little icon:

The second picture shows the context of the icon.

It looks like a radar gun of some kind. Or maybe a bar drinks dispenser or a faucet. Or a camera. The circle is red, not green, so whatever it is isn't permitted; but there's no diagonal red slash, so whatever it is isn't prohibited, either.

I wonder what they are trying to tell me.