You know, it may be a very small token but when somebody else fills up the aircraft and I'm around (truck or bowser) I almost always make an attempt to reel in the static line as a tiny show of my appreciation and put away the ladder if one was required. (Time or circumstances permitting of course.)
It's not really about speeding things along or helping reduce workload, it's about acknowledgement.
Add to the mix that often the ONLY local with whom you may have a chance to strike up a bit of a rapport will be the local refueller I would suggest that it might be worth that bit of common courtesy to be able to make a friend at YXXX for the odd stormy or gremlin-filled night when you can't get home.
Just my 2 cents.
FRQ CB