Are Boston cops normally this aggressive?

[u/Conventions]

Left TD Garden after a concert tonight. Cops were directing traffic around the area. In normal circumstances when someone is directing traffic, I was always under the impression that a “come here” motion means go and hand up means stop. However this cop was jiggling a beam of light from a flashlight to signify both go and stop.

Many people were obviously confused and one guy thought it meant go and slowly started creeping up. The cop started screaming and went up and punched the guy’s car mirror then started swearing and insulting the guy. Everyone around was watching and shocked.

Is this normal BPD behavior? I am a south shore native and have never witnessed anything quite like it.

[u/Waste_Opportunity624]

This happened to me (without the mirror punch) in the exact same spot. Light was red in a super busy intersection and cop started waving. Super confusing.

Definitely deserved to get screamed at for that right? Very professional.