This from Larry Shapiro:
Arlington Heights and Buffalo Grove units were sent to a reported pin-in crash at the intersection of Arlington Heights Road and Dundee Road after 10PM Friday night involving one car and an ambulance. The private ambulance was knocked on it’s side. There was a crew of three in the ambulance at the time with no patient. All three had self extricated prior to firefighters arriving, and the driver of the sedan was taken to the hospital.
more photos at shapirophotography.net