I have to believe most of the time Toby's truck is pulled over it's for being overweight.

! And there is serious reality behind your joke.
And I've run across my share of cops who have an irrational hatred of truckers.
If Tobers sees police more often because he's on the road more often, police, state troopers, and highway patrol officers see more truckers due to the same cause. Police, state troopers, and highway patrol officers see more truckers who are falling asleep, are driving ill-maintained, dangerous rigs, are over-loaded, are intoxicated, and who are driving like maniac morons. Maybe Tobers wouldn't drive more than the legal hours, maintains his brakes and tires, doesn't over-load, and doesn't drive drunk or like a @$$hole, but there are truckers "out there" who do, and it doesn't take a very high percentage of idiots and @$$holes to tarnish the image of all truckers.
BTW, it's probably been 5-10 years since I was last pulled over by a police officer (tail light burned out), and 20-25 years since I was last pulled over for something not equipment-related (driving solo in a carpool lane). At 14K or 16K miles a year, ya'll can do the Math; for DU-folk, that means I've driven 300K-400K miles without any sort of moving violation. Not earning tickets is not that hard!