Ind. trooper lauded as 'hero' for citing 'slowpoke' driver

Around here, they call the right lane the through lane...because it's the lane you got through to get on and off the highway. I see it all the time. They get on, and regardless of whether they're going fast enough to even travel in the right lane, get immediately into the left. Left laners stand on the brakes and the horn but it means nothing. It's their road. They stay in the left lane until 200 feet before their exit and cut across 2 lanes of traffic to get off. Meanwhile 1/2 mile up the road is statey with radar pulling over drivers from CT for 10 over. Who's the biggest threat to safety?