Been there, done that! Part of my fueling parking check is to ensure there's room on the PS to deploy the steps. I also have stopped at a truck stop - some fueling bays seem more narrow than others - and had the same issue with the corner of the steps contacting a post. I was watching to check for a clean deployment and immediately re-closed the door ... inched forward a bit, then tried again. I think I caught it before the hydraulics broke anything.
Roger & Judith
2023 Newmar Essex 4595 (on order)
2017 Newmar Essex 4533, Spartan K3 chassis (sold)
2019 GMC Yukon Denali, Blue Ox, Air Force One