There is far more space between the police cars when Daisy's yellow car is "ski-driven" between them than there is a previous shot of the car approaching the cruisers.
Alternately clean/mud-streaked windshield on Roscoe's cruiser during the chase scenes.
When Suzy is thanking the Dukes on the bridge, in a long shot you can see Fred running past Alda's character at the end of the bridge. In the next shot you see Fred driving up in his car.
Daisy receives the "Dixie" Jeep at the end of this episode. But she already had the jeep in prior episodes.
Roscoe would not have been able to have his cruiser towed by the horses, since without the ignition key he would not have been able to shift the transmission out of "P", and so the car's rear wheels would not have been free to roll.
As Bo & Luke are jumping out of the Road Runner just before it goes over the cliff, a stuntman pops his head up in the backseat.