Roll split on the AB driveway; damage bonnet, windscreen, etc. What to do?

Hello, I have a real neck at the moment. I’m from work on the highway and apparently at noon at the end of the driveway a piece was repaired and there were still tons of roll split on the road. This roll split was swirled up by the cars driving in front of me and banged several times violently on my vehicle. Now the bonnet has several small paintplaces, the windshield has some squares and the roof also doesn’t look much better… Who would you report to for damages? There was no sign, no speed limit, nothing…