I went last August and I saw many Muslims there, it was unmistakable. I don’t believe I saw the face covered hijabs, but I saw the ones that cover a woman entire hair. There was a lot of them there. This is one thing they did in many lines; they would send one person into them, and then when that person gets close, about 8 other people would try to join him.
On another note, half of the employees were Chinese.
Common trick used by a lot of people. Had an entire Brazilian soccer team do it to me once. My favorite is when someone acts like they recognise someone and walk all the way to the front of the line.