I understand that customer service can sometimes come with some attitude or misunderstanding but outright denying the service you're trying to sell for the sake of teaching a lesson doesn't look like a smart idea
I wasn't pissed off when he said no, I thought he's closed and working for himself after hours
BTW
@Euclid which store in Monsey gives attitude I've never been in such a situation in Monsey, not that I went shopping by all stores
I did have those oldeis that were interesting sometimes but never got Musser behind the counter
I also had Rockland kosher denying the purchase of beer for a vach nacht mtzsh for not having an ID but that is policy not attitude, and we dealt with it accordingly