Cop is trying to protect her...

It’s attempted vandalism. Depending on the price of the camera, it could be a felony.

"When Frank Stein grew concerned for his elderly neighbor's safety, he called the police. But nothing prepared him for what was hidden behind her garage door.":

Why was he there filming two women?

This is not about police officers. But about colleagues who help each other. Even if that doesn't make it any better.