Warming your car up by leaving it running, unattended is tempting in cold weather. However, it is dangerous and illegal.
During the winter months many citizens start their vehicles and let the engines run while sitting in driveways or parking lots unattended. Last year, several cars were stolen or taken for a joyride. This behavior is not only dangerous but also illegal regardless of whether the car is locked or not. Car owners can also be held responsible in civil court for damages or injuries if their car is taken and involved in an accident. The bottom line is to never leave your car running unattended.