dude where I live all the gas pumps do that on my car lol
What if you just listen to the changing tone of the fill as it creeps up the filler neck?
Otherwise you should remove that filler neck and modify it so that the nozzle is able to enter deeper. I'd mod it so it burys it all the way to the handle. All pump handle (nozzles) have a shut off sensor in them when they detect a pool of gas. If you fill up slowly you may just be able to get it to shut off gently like I do it...I have to cuz these stations here are sooo ghetto
"You have to know the truth, and seek the truth, and the truth will set you free."
Bring red tanks of gas and some sort of filling stick, or something like that, I dunno.
That's what I'm thinking -- you may have to fill a separate container of some kind and use that to fill up, but spillage may be inevitable. Accurate fill ups may have to suffer unless you replace the filler tube with a straighter one (not sure if that's an option).