i'm still not convinced on a number plate filler, there are a number of times when I would have not been able to pull far enough forward for pump to reach.
Most times at Asda, i have to stop mm's away from car in front to pump to reach
At the place in Towcester, due to the layout of the cheap petrol pumps (only the front ones, the rear set near the LPG are premium only), it queues. As they now have longer hoses, it does reach if somebody is queuing, but before, I'd swing it in backwards 
And having a central filler, I can use both sides 
I did that in my commuting days, but if a faf. You then get some dozy cow stop in front of you, meaning you can't pull forward.
Then do a 3-point turn to face the right away again!
Also get beeped when I only pull forward to LPG pump, when the petrol ones are free in front, Hello!??! do you not see the LPG filler? Numpties!
Couple of times i've had to stretch the LPG pipe to reach, and because of the recoil, quite a lot of 'sideways' pressure is applied, so I had to hold it to keep it slack to the filler.
Also find trying to attach nozzle when its extended a fair way is not fun in crap weather!