Sometimes, just sometimes, they can be rude. Last October my sister got married here in San Antonio. It consumed my life and of course, I was late getting fitted for tuxedos. Well, we had 5 tuxedos to get fitted for. My husband and four boys. They wanted to charge me an extra $20 / tux. Times 5 that is $100!! I dropped my name, told them how often I refer them. How I always take care of their tuxes and return them promptly the next afternoon. Didn't work.
So, after all that, here is the tip:
I walked out and went to the next store (same company, another branch) and ordered the same tux outside of the group. I actually paid less than the others in the group. So if you find yourself in a bind, just wait an afternoon for another salesperson or go to the next store. Don't pay the extra fee - SO not necessary.