That’s a tough spot to be in. I had a similar situation where my car got scratched in a parking lot by a delivery vehicle, and we saw the whole thing. We ended up filing a police report and notified our insurance. The police might not investigate deeply if it's just a minor accident, but having a report can be useful.Reporting it to your insurer is a good step since they'll handle the claim and deal with the pizza place’s insurance. They might also help you get in touch with the delivery service. If you’re worried about how to handle it, you might want to check out
flinjurylawattorney.com for some advice. They helped me with a claim a while back, and it made the process smoother.