State Troopers

So…I was driving to work this morning and there is a spot on 464 after a bridge that a cop sits at regularly. I had my cruise control on set for 62mph. Speed limit is 60. Yeah I live on the wild side. (sarcasm) These two tractor trailers blow by me and keep rolling going at least 85 mph and the cop didn’t even flinch. So…why is he sitting there? Maybe he is waiting for a vehicle weighing more than 12 tons fully loaded with cargo to go by at 55 so he can pull him over for a broken tail light or for not driving the speed limit or  something.