With the recent cold snap and the non-stop weather coverage I noticed many media outlets reporting that some communities have ordinances prohibiting the practice of leaving your vehicle running unattended. And yes, Wauwatosa is one of those communities.
Wauwatosa Ordinance 11.32.370 reads No motor vehicle shall be left standing on any street in the City of Wauwatosa with the motor running except when attended by some person comepent to operate the same.
This of course does not preclude you from starting your vehicle to warm it up while you are on private property but I do want to caution you because it does leave your vehicle at a high risk of theft. It does not take long for a person walking up or down your street to jump in your running car and drive away. If you do have to warm up your car please consider having spare keys so that you can lock your vehicle as a little bit of a deterrent to theft; but a better bet is a remote starting system that allows the car to remain locked while started and will shut down if the vehicle is shifted into gear without the proper key in the ignition.
