Do we work together? (I'm assuming not.) Some guy where I work does the same thing, same truck. Usually he's still thousands of feet away when he starts it too, maybe even still in the office.
A huge percentage of people that live in the cold parts of Canada have "remote start" on their key fob. Press a button and that ICE fires right up to warm up your cabin, defrost the windows and get the engine warm enough.
They usually have some kind of hardware interlock to make sure the transmission is in park and the hand brake is on.
FWIW remote start is not allowed in Europe, so in the northern areas cars come with separate units that generate hot air from a heat exchanger connected to a small chamber with a flame burning the fuel.
People in the warm parts of Canada do this too, now-a-days. Its kind of weird to be be riding along the road at 5 C and see all these empty cars idling on the side of the road.
