Tiny nick on a car, but I left

Okay I was parking at work (big parking lot) and I lightly tapped a car as I was parking next to it. I got out to check and it was the tiniest nick and no one would notice if you didn’t tell them. The owner wasn’t there, car was unoccupied. I decided not to leave a note because it’s totally unnoticeable and no one was in the car. I ended up leaving and moving out of the lot and worked from somewhere else because there was a guy in the lot a couple rows away and I didn’t want to interact with him. I don’t think security would even check and even though there are cameras somewhere, I’m not sure any were close enough to see my plates. Again tiniest nick in the world. But that guy was in the parking lot a couple rows away from me and saw this happen. He wasn’t close enough to see my plates either but I am scared he might tell security to check on this. What should I do? He’s a random person and probably doesn’t know the owner of the car but he saw me leave and now I don’t know if he would say anything about it. Please help!

Like do you think even if the owner finds out and sees that tiny nick, that they would go to the police? Or that security would go to the police without telling the owner of the car?