A bathrobe appears on Luke when Jesse wakes up the sheriff.
The cop car slams full-force into the tree, yet when it drives away again, the front bumper and grille are not squashed in at all; there is just a small hole in the radiator that is steaming.
In this episode they state that there are alligators in the water but they then show clips of crocodiles going into the water.
The Dukes are shown to be changing the General Lee's wheels with a pneumatic impact-wrench, yet they are beside a swamp that's away out in the boonies where there is no garage nearby with a shop-air supply, and there is never any mention of the General's having a built-in 12-volt air-compressor.
The temporary sheriff and Boss Hogg had been driving on the back roads for quite a while after they got the hole in their radiator, so all of the water and antifreeze should have been boiled off by that time; there could not have been any coolant left in the cruiser's radiator to still be steaming by the end of the episode.