Unnoticed car striped, hit-and-run?

Yesterday (05.12) early in the morning I drove to work and after a traffic light (just before it starts) where it then becomes two lanes I moved over after about 50m from left to right to overtake a slow truck (I know overtake right is forbidden, also in the city?), after the said traffic light and 50m I thought I had left all the cars on the right long ago, so I didn’t put a turn signal and over to the right. The 2 sp urige road goes still about 200m until then a strip goes to the right where I also had to go to my work place which lies 300m further, but after the turn I noticed that the car behind me makes light horn, I thought hmm… no police why should I stop and I had to anyway in 100m to the company parking place where I also drove in but since there was no place more I was out and there was already a woman in front of my car fully excited and swearing I would have rammed a car and went on hit-and-run and that she would call the police now. I didn’t think I heard correctly how, when and where I asked her, she just said get out I was going to call the police, I was still baffled and didn’t know what was going on. I then looked at her car and saw a scratch at the front left of the fender (as in picture 1) and thought shit, can’t be I didn’t notice anything! I looked to my car right hit nothing!, wiped off (st I thought I couldn’t be, I didn’t know anything. She had been on the phone during this time and had always called me an ars..hole on the phone, and I told her that she should not do this and should calm down. I then admitted to the view of my scratches, that I probably did not notice anything, because my car (Dodge Avenger 2008) weighs already 1600-1700kg (their car S koda Roomster) and when I walk by I don’t feel something like that and I don’t stop at every light hoop, she afterwards, you wanted to leave the parking lot again, I said, why should I first go into a dead end next to my office and then drive out again!!! Then came after 30min at some point the police and recorded everything unfortunately also the alleged driver’s flight that I have denied, they also checked if I work 10m further, but did not help anything. What do you think? I have to expect or do!