It was a rude awakening Monday for hundreds of Chicagoans who had their cars towed overnight—as enforcement of the city's winter overnight parking ban went into effect. The ban usually goes into effect swiftly and automatically when the clock strikes 3 a.

Snow or no, your car could be towed. Chicago’s winter overnight parking ban begins at 3 a.m. Sunday. This means parking is prohibited on 107 miles of streets from 3 to 7 a.m. — regardless of snow — until April 1.

Some Chicago drivers are in for a rude awakening Monday morning with the city's overnight winter parking ban in effect.