People suck, not leaving notes when they do damage like this. I got lucky though, because there was no ding, just a scrape of paint transfer, so a
DI Gentle/Fine claybar with a bunch of elbow grease took it out. Attachments show before/after.
(Edit: I'm parked over the line in the 'after' photo only because it's the end of a parking lane so I could be further from the car on the passenger side. I'm not one of those drivers who takes up two spots!)