She drew her weapon before she realized there was a uniformed officer in the vehicle. Once she saw he was an officer, it appeared to me she holstered her weapon.
Honestly, the arrest seemed a bit much considering he was an officer. Surely she should have issued a ticket, and perhaps filed a formal complaint of sorts...but putting cuffs on the guy? I'm not even sure a civilian would have received that kind of treatment in my area.
If she didn't have a reputation before, she'll certainly have one now. Probably time to put in for a transfer to internal affairs. :p.