am with you MMG... have been in towns that did this and anyone that has ever driven a big truck will tell you that the azzhats with the 8" straight pipes and a jake have pretty much banned every tractor trailer from using engine brakes.. 1% of the clowns have affected the other 99% of the responsible guys..
arguing with guys that believe the "loud pipe" thing is like pounding sand... the "Look at me" syndrome is too deep...
in time, you will find that most are young singles without kids.. as maturity sets in, they start to see the pluses and minuses of each... Just takes time.. was there at one time myself.. about the time I turned mid 20's, I wised up myself..
Just hope that they respect quiet neighborhoods in the mean time.. (is sort of like playing your loud stereo in your own driveway, lets every crook within earshot know where the booty is)