Cars, Engines, Fuel, Time, Money

Running into a small business recently I was again aghast to find a police car, no policeman but the engine running anyway. I'm sure police get hot and spend a great deal of time driving. Even in the most efficient fuel source this is not acceptable behavior and is not a good role model for the youth. A few days ago, same exact scenario but this time it was a shopper. Instead to turning off the vehicle the car was running, doors locked and no driver in sight. Where do these ignorant people come from? Are they running around without any exposure to media? Can anyone read, see or be exposed to nature and not want to protect it from us? God gave us a brain and it's our responsibility to use it for the good of all.