Huey's mercs had gotten soiled by the spilled grease during the fight in the barn, yet in the close-up shot of them riding in the patrol car while they are fleeing the Dukes, their uniforms are clean.
Roscoe starts to drive away after knocking Boss's Caddy backwards into the fire hydrant, yet in the next shot of Roscoe looking back, he is stationary.
Strangely, Hughie does not seem surprised that he's dealing with Coy and Vance this time around, rather than Bo and Luke, especially given that it's not likely he's ever even seen the " New Dukes" at any time in the past.