If you didn't know, it used to technically be illegal to warm up your car in your driveway unattended.  This little known infraction became statewide news earlier this year after Nick Taylor of Roseville, Michigan received a ticket for leaving his car running and unattended in his driveway.  And now, almost 7 months later, it's finally legal to warm up your car!

This winter you'll have nothing to worry about when you run outside in subzero temperatures and leave your car idling while you get ready for work.  Just be sure that you leave your car in park.