I agree with the Zakk D. on this one, that if you don't dress well, you don't get the service.
A pair of suspenders for my suit broke right before I was to get dressed, and I was in a hurry. I race down there in a pair of shorts, gym shoes, and an undershirt, and what looked like the entire staff (No one in suits on the floor) just stared at me as I went to the rack. I knew exactly what I needed, and was in a hurry, but they all continued their conversation (Even with me standing at the counter) until I asked if I was going to get any service. If I had known of another place to get suspenders, I would've skipped over this particular trip, but now I know not to go in there.