I was cycling along along Caves Road. A car towing a trailer passed me. As they passed, they threw a plastic bottle out the window, leaned on the horn and pushed me in to the ditch. I caught them at the next petrol station and approached them regarding their driving. I was hit with a mouthful swears. I was pretty cool until as I was leaving the guy spit on me. I punched his passenger window. I took off pretty fast. The guy got into his car and tried to chase me, but I was able to get away. My concern is that my punching a window, I have committed an offence and could be charged with damage. The petrol station has cameras, however, I was wearing a belt helmet with sunglasses, I may be hard to recognise. At this point, should I go back to the petrol station to find out if copies of the tapes had been collected. If I am approached by police do I tell the truth and hoped not to get charged? Should I say nothing? Any opinions can help.