I am just following the Gerer Rebbe psak. One fine shabbos on Warsaw, an yid on a horse had hutzpa to ask some Gerer chasidim directions. They turned away so not to see the aveirah. Then the Rebbe walked to the guy and gave him directions. He explained to the surprised chasidim that this way the guy will ride the horse less and do less hillul shabbos. The sefer didn’t make it clear whether this was the real explanation or just plain derech eretz towards an yid.
I have to add a personal story. I once asked someone looking like a Gerer chosid directions in Yerushalaim, not on shabbos and not dressed like him. This was before gps and few people had cellphones and paid by the minutes. The guy got out his fancy phone and started calling his friends and family for my directions as if it was his own problem.