[Highland Park] Bus damaged car - any witnesses?

A bus hit my car today (8/31) around 8:55 at the corner of N St Clair and Elgin St. I just wanted to check to see if anyone was on the bus and saw it happen. I didn't see the number of the bus from my window but know it was green and was rerouted onto Elgin due to the work on Bryant St. Also, if anyone has dealt with this kind of thing with the Port Authority before, I'd appreciate any advice.