Ive been there. They were total dicks to me. I bought a cashmere Hermes shawl from them to flip - they had it at $250. I was coming back from Nantucket and stopped in and looked super scruffy. They gave me such shit about it and reiterated that it was TWO HUNDRED AND FIFTY DOLLARS. I paid them and told them I planned to sell it for $750, and thanks on the way out (I did).
That would have been a good moment to subtly-not-subtly reach into your pocket and place the key fob to your Ferrari on the counter.