While driving on a side street by my house, I came up on a stop sign at an intersection. right before the stop line is a manhole cover that when my tire ran over it, cause my anti lock brakes to activate, which made me slide through the stop sign a bit. I brought the car to a complete stop, then proceeded to turn right onto the next street. The cop hits his lights and pulls me over. He comes up and ask did I know what I had done and I explain what happened with the Brakes. He takes my License, walks back and writes a Ticket for running a stop sign, Hands me the ticket then walks away, not mentioning a court date, nor asking me to sign the ticket at all. Is this ticket valid or do I have a adequate case in court?