Hit bumper in car park

I'm a new driver. As I was trying to park my car in the college car park earlier today I very slightly clipped the bumper of another parked car. Must have been going about 3 miles per hour.
I pulled out and parked up nearby as I could not very well just stop in the middle of a car park with a one way system in place. Nobody would have been able to get around me.

Anyway about 5 mins later I go up to check on the other car. The damage is so slight it's barely noticeable. A tiny bit of scratched paintwork on the bumper. There was nobody in the other car and the owner was nowhere to be seen. It's a college so they could be gone for hours.

Anyway this man came up to me, not the owner of the car, and said I'd "left the scene of an accident" which was a criminal offense and he was going to report me to the police. He said he'd caught me on his dashcam (even though I saw nobody nearby at the time) and I had damaged the other car's bumper. He demanded I let him take a picture of my car's Registration plate and made out he was going to report me.

I took pictures as well, reported the incident and left my details at the College Reception. I also left a note for the other driver.

When I came back later the other car was still there, but still no owner. I checked and there seemed to be no damage at all even the minor scratch on the bumper wasn't visible anymore.

However I'm petrified the police are going to come knocking on my door. That man really scared me. I wasn't intending to "leave a crime scene" I was just parking safely and then went in search of the parked car's driver. I had P plates on my car and the guy looked like some random workman with a load of his friends standing nearby.

I'm a new driver. As I was trying to park my car in the college car park earlier today I very slightly clipped the bumper of another parked car. Must have been going about 3 miles per hour.
I pulled out and parked up nearby as I could not very well just stop in the middle of a car park with a one way system in place. Nobody would have been able to get around me.

Anyway about 5 mins later I go up to check on the other car. The damage is so slight it's barely noticeable. A tiny bit of scratched paintwork on the bumper. There was nobody in the other car and the owner was nowhere to be seen. It's a college so they could be gone for hours.

Anyway this man came up to me, not the owner of the car, and said I'd "left the scene of an accident" which was a criminal offense and he was going to report me to the police. He said he'd caught me on his dashcam (even though I saw nobody nearby at the time) and I had damaged the other car's bumper. He demanded I let him take a picture of my car's Registration plate and made out he was going to report me.

I took pictures as well, reported the incident and left my details at the College Reception. I also left a note for the other driver.

When I came back later the other car was still there, but still no owner. I checked and there seemed to be no damage at all even the minor scratch on the bumper wasn't visible anymore.

However I'm petrified the police are going to come knocking on my door. That man really scared me. I wasn't intending to "leave a crime scene" I was just parking safely and then went in search of the parked car's driver. I had P plates on my car and the guy looked like some random workman with a load of his friends standing nearby.