Dude Wheres My Car - Chicago stores your cars license plate number and allows you to store your current parking location to help find your car faster.
In addition DWMC helps you to quickly search the City of Chicago Open Data Portal Towed Car database to search for you car if when you return to your spot its not there.
Instead of calling all the tow yards in the city to find your car quickly and provide you the address your car was relocated to and a phone number to call to get your car back fast.