By the way, maybe the manager was having a bad day.
Maybe his kid has cancer. Maybe his wife left him. Maybe the car battery died. Maybe...maybe...maybe...
Life's harsh. Then you die.
Okay, the store is swamped and they are short handed and the guy is doing the job of 3 people. He's supposed to walk her over to the office and be nice to her while customers are waiting? No, he handled it correctly for the situation.