About 25 years ago it sounded like an explosion went off in my car late one night on the interstate that goes across town. No gauges changed and the car kept driving straight. The next morning I noticed the windshield on the passenger side was busted. Totally circular cracks that didn't/couldn't spread to the driver side which is why I didn't notice until the next morning.
When I realized that it must have been kids throwing rocks off an overpass I called the police. All they did was take my name and where I thought it happened. Never heard from them again. I should have called upstairs to the editorial department when I got to work but didn't. (I was an ad salesman for the statewide newspaper.)
Then, about 10-15 years ago the same thing made the paper. Only this time, in the same spot where it happened to me, the rock went through a windshield and killed a mother. Her 12 year old daughter had to grab the steering wheel as she scooted across the front seat get her foot on the brake to keep the car from wrecking. The kids who did this were caught when someone left an anonymous tip.
Scott, call the newspaper and let them know what happened. They might just do a story, which could help catch the sorry punks who are doing this. If it's happened several times, maybe a local TV station will do a "Crime Stopper" report.
Stay safe & hydrated,
Chuck