I was driving on a narrow street with lots of parked cars and had to move over as another car came round the corner towards me. I moved as much as I could and accidentally clipped a parked car. I parked up to check damage. I was unable to inspect the other car closely but looked like there was a bit of a scuff, but big scratch to mine. I parked up in only available space by a shop but the owner came out rudely telling me to move my car.

I had no pen/paper with me so was unable to leave my details. No phone on me so couldn't get a picture of the car reg/damage etc. I have reported the incident to police straight after and will also inform my insurance company. What else do I need to do? Can I get in to trouble for not leaving my details even though I have reported the incident?