A while back, I had an abaya push in front of me in a Qtel line for customer service. I decided to just let her do it and said nothing. If I had questioned her I wonder if I would have had a screaming abaya raining down insults and curses in full view of everyone on me? I kept quiet because I didn't want to become part of a scene.

Lets look at a possible scenario. Perhaps the Asian lady in the OP did what I was too much of a coward to do, and spoke out, and paid the publicly humiliating price for doing so.