In the opening scene when Roscoe stops the boys with the water heater, they come to rest on a wet paved road. Next camera shot they are in the woods on a dirt road.
Uncle Jesse's phone conversation with his nephews about the marijuana was less than a minute long, so there is no way that Mason's assistants could have donned their pole-climbing-rig belts and gotten up the pole to hear any of the conversation in that short amount of time.
Handcuff keys are generally all the same, so the cuffed officials would merely need to ask another policeman for a key; they would not need to "have another one made", as Enos speaks about doing.
The girls climb Razorback mountain, how did the ropes get to the top? And upon arrival the ropes in which they were climbing on weren't attached to anything. BH.
Rosco cites the "any object protruding more than three feet behind a vehicle must have a red safety-flag attached" statute, but the water-heater box that the Dukes are hauling - though it is indeed quite tall vertically - does not extend backwards anywhere near a yard. It could, however, be taken into account that corrupt Rosco is looking for any excuse to cite the Dukes, and however dumb and inefficient, he is so obstinate, the Dukes wouldn't have bothered to argue.
The mercs' hubcap is never shown to hit Mason's car, yet his lady-assistants speak of their being owed a paint job for "what the hubcap did to their fender".