You make a good point with law enforcement, I have called them on occasion, usually ending with telling them I am alerting them to illegal activity, especially when 30+ atv's spill onto the state road for 1/4 mile, on the sidewalk.
Unless you file an official complaint or what have you, they don't acknowledge anything else, but if someone was doing something more serious, would they ignore that too ?
I always tell them that I understand the low priority of these matters, and would not be the person calling everyday, they actually are pestered with this so much already, I had one trooper tell me that, at least he was friendly enough to have an off the record conversation, and was actually very helpful, but that was years back when my friend was in the spotlight, over the burnt barn retaliation by poachers he had prosecuted, we need more people like that in uniform. At that time, he said they get 10 calls a night on ATV's and wished they were outlawed. I would never call repeatedly, you have to use some discretion on that or you'll never get any action, I can understand the frustration on their side, its smart to be humble about it, and I've yet to ever have one person prosecuted, that might change as of late though.
I don't believe either of those injured on sleds were compensated, I might be able to find out if it was pursued, knew one of their friends and rider in that group that night. Power company had line crews out erecting new poles and lines, these idiots were going too fast in an area where they were working and staging materials, completely illegal and foolish, poles were under snow, but the drill rigs were not.
I had a head on collision with 2 teens on a dirtbike when I was a senior in HS, unregistered, unlicensed, uninsured, no lights, both were lucky to live, it was in top gear as I checked it out, and they were going so fast, when they hit my car a big ole GM impala, one flew 60 feet past the car, the other smack into telephone pole about 10 feet up, lost some toes, leg was up around his head, he was conscious and an awful mess, I had thought the other was deceased. Not sure where they collected from, but I graduated with $3.5 million dollar lawsuit, threat of garnished wages for life and all the rest, you ought to see the house he lives in.