From the second floor office where I work, I can turn my car on, using a remote starter. The tinted office window overlooks the parking lot, and I have a line of sight to my car. I see the headlights indicating that the car started.
The remote starter was a gift from my wife. Her car had this feature, and I wanted it for my car. It helps when the weather is cold. We don't have a garage, so it saves us a trip outside to get the car warmed up. It feels like an indulgence, having a running car to step into!
Over the past few evenings, I've noticed people walking by my car as it turns on. I often wonder if they're surprised at a car turning on by itself, but they don't break stride to look around. To be considerate, I sometimes wait for them to pass my car, so they're not startled.
I don't use the remote starter when the weather is warmer. I can't wait until then.