You can’t properly level a machine with the glass on for one. Secondly, not your machine, don’t adjust it. Third, if an operator is to lazy to fix it, stop supporting his location.
If I were to speculate, I’d say a location that had unkept pins probably wouldn’t care or even notice is somebody adjusted it, if that’s the case though, why pump money into garbage wagons? On the other hand, if the pins are super clean/well maintained etc., the operator is probably going to loose his shit over it. Either way, it’s not worth messing with, either advise and move to another pin or location.