This from Larry Shapiro:
Here are some images from a three-car crash on Milwaukee Avenue at Woodlands Parkway 6/6/19 in Vernon Hills. There were multiple occupants between the three cars but all signed releases at the scene. The accident was apparently caused when one driver pulled to the curb southbound as a Lincolnshire-Riverwoods FPD ambulance was heading north to a hospital with a patient from an unrelated incident. One car failed to stop and hit the first, and then a third car plowed into the second one.