City and County Vehichles Idling

What are we to do with the local city, county, and state workers that pull up to a work site and get out of their vehicles and leave the vehicle idling? I realize that this is the macho thing to do, and it makes the individual feel important. Maybe they are just lazy. This is not only a waste of gasoline, but also a waste of tax payers money. It also pollutes the air. The running vehicle is also a good target for thieves.

I think we need to politely tell these people to turn off their engines.