Signage is permanently posted along the affected routes, the city says, and vehicles parked in prohibited areas between 3 a.m. to 7 a.m. will be towed .
The official start of winter may still be more than a month away, but the temperatures of the upcoming season are already in the Chicago area this weekend.
It may not be winter in Chicago yet, but it's just about to start feeling like it. But can you start your car and warm it up while you, say, shovel the drive.