So...tonight was my second run in with a mess of guys shutting down I25 in the Northglenn area. Had at least 5 cut me off at extreme excessive speeds within inches. Called 911 and took the exit at highway 7. Oddly there was a huge line of cars also taking that exit. Spotted somewhere in the neighborhood of 200 cars parked in the lots right off that exit. Pulled in and waited for the Northglenn police to show. Spoke with an officer about it when he got done talking with the people who organized the event. The officer was more interested with being friends with the racers than actually stopping them from trying to kill people on the highway. He flat out told me that he would not take any action against any of them and that it didn't matter that I had dash cam video that could identify them.