I want to file a complaint on a specific bus drive...

I want to file a complaint on a specific bus driver for passing a bus stop that I was on, the bus stop didn't have no signs stating it was going to be a detour nor was the street block off. I usually get on this bus every other night by the same bus driver who passed me. The bus driver drives the #23 going northbound and he usually arrives on 2nd & Wisconsin around 11:05PM. How do I file a complaint?