That's a good one! It doesn't surprise me though. So many people are looking to sue for ridiculous reasons.
I believe the door open button deal has to do with maximum reach distances if a person is in a wheel chair in a center opening elevator. It is standard that the door open button is on the left side on a main panel if the COP is on the right on a center opening car. If a center opening car has an aux. COP on the left the door open button should be on the right. This has been brought up by inspectors in OC and San Diego, both state inspectors. Are the majors using this practice as a standard or do both main and aux. panels have the DO button on the left?