Tucson Police flag cars for thieves ...

Can this possibly make sense?

... while you're in stores shopping, Tucson Police are patrolling parking lots, randomly checking cars for security.

Then they're leaving pass or fail report cards on vehicle windshields.

Patrolling sounds like police works. But the rest? Don't the police have real work to do? Something other than flagging potential vehicles for thieves? Could we possibly have too many police officers and they're looking for more things to do?