Agree with previous comments. As long as it's not continuing to do damage, touch-up and move on.
I was thinking about sucker marks from the giant squid and think I might have an idea: combination of the 1) Cup2 tires and 2) perforated surface of the carrier they drive cars on? Those tires are super-soft and sticky. I think just rolling one around on the driveway I picked up 2.5kgs/ 5lbs. of rocks in the process.
Factory usually causes this when they slap on the bumper. Seen one person on one-side using a rubber mallet and the other person on the other side gently use their hand to secure them. Welcome to America and the UAW. Quality control probably missed it too. Touch up paint and carry on... nice ride btw!