I'm pleased to hear your experience with the male Le Labo rep was nothing like mine, although I do feel perhaps he could have done away with his friends whilst serving you.
I received a lengthy exposition from Le Labo in response to my complaint. They maintain that anyone can have a bad day, however the complaint will not go without consequences. (Apparently one of the company's founders will be visiting the Liberty's installation next week to ensure the customer experience is what they expect of their staff). Whatever the case, in the interests of bettering customer relations, all grievances ought to be heard and taken seriously.
Based on your description, I dare say the woman you saw in Fine Fragrances is the same pacing lioness we experienced. She was not a charmer by any stretch of the imagination... but perhaps on the day you visited, she too, was having (another) bad day.