Rude employee

I was at the Postnet Greenacres Branch to print some documents. When I walked in there was a gentleman (Brandon) who was sweeping the floor, when he saw me standing in the queue he asked if he could assist me, and I proceeded to the counter. Whilst he was a assisting me a senior lady(Bridget) came from the back, she noticed that the dirt was still on the floor, she then told him to continue sweeping, meaning he must leave the customer(me). She kept on telling him to do as she says and by now she was raising her voice, eventually he ended up leaving me and asking one of his colleagues to assist me further, unbeknownst to him there was another customer waiting to do fingerprints, now there's not only one customer that must wait, there's two. I didn't wait long to be assisted by the colleague, for me it was how she treated him. If she does that in front of us, I only wonder what happens when we're not there.