I could not come up with a well-phrased version of this title :(
But at any rate, over the next month the city is going to perform some extra evening snow plowing on some neighborhood streets. And if you're on one of those streets, they would like you to move your car for a few hours so they can do a good job.
Head over to this article on the city's site for a list of roads, dates, and times.
edited to add:
I just recently discovered the many email lists the city will let you subscribe to. On their website, you can subscribe to updates on…well, just about anything Ann Arbor-related!