I'm so sorry you had a bad experience. Have you considered letting the manager know? This is a business, after all, and they need to know if you aren't being properly treated. You'd be doing them a favor--imagine how much business they're losing!
I don't think the manager was there, it was just the two of them. Unless one was the manager, in which case complaining would do no good! I have considered calling today to let the manager know and that while I'm in their area from time to time, I will make sure my purchasing is only done at the boutiques closer to my home.