The Salvation Army USA

I was helping a customer carry a ac to get it to a cart, and this rude lady wearing a white shirt, comes hollering to only bring that to the front if I'm going to check out which if I was taking to the front of understand but I was just helping another customer out. Then I come back and was going to explain to her that I was just helping the lady and she starts talking about he has to leave this and that. Someone needs to talk to her about how to speak to customers or to rethink her carrier it's not you my fault she hates her job and she isn't going to take it out on the customers.