Corrected entry: Near the end when they are pulled over for speeding the markings on the Troopers squad are for the Wisconsin State Patrol. Driving from St Louis to Chicago would have kept them entirely in the state of Illinios and not north up into Wisconsin.
rswarrior
27th Feb 2011
Correction: Unless some of the highways between St Louis and Chicago were closed due to the storm, and traffic was detoured around southern metro Chicago. I've driven semi truck for 15 years in the past, and this kind of thing has happened.
rswarrior