Motorists have been using police shirts like this one on dashboards to park illegally and avoid fines. (CBS)

2 Investigators: Civilian Motorists Get A Free Ride, With Cop Shirts On The Dash

Some drivers are playing the system by displaying police uniforms or other material — suggesting they are members of law enforcement — to avoid parking regulations and fines at a Cook County courthouse. 2 Investigator Dave Savini reports.