Did a search but didn't find exact question so..I went into work yesterday and a service truck was parked by our entrance with the back open and it was idling (not a big deal, happens often) I went ba...
Idling: UPS drivers are trained to always turn off their package cars when they stop for a delivery, never idling at the curb or in a driveway. Even if the driver is out of the truck for a few seconds, the vehicle is always turned off.