If the "regular" pumps have a height POSTED of 14' or more and it looks like I can get away from them cleanly I'll use them, otherwise I use the truck pumps. I'd rather have to walk in and leave my card than wipe out an air conditioner or get stuck not being able to pull out. Never had a problem, go in leave your card, come back and pump, pull forward out of the way of anyone behind you and go back and finish the purchase. You do have to be careful of the big nozzles but I just set it on the slow notch and watch how much is being pumped and when I think it's getting close to full I take over by hand and really slow it down.
Also I am finding more of the fuel stops will take my card at the pump than before.
