In the opening scenes, two different blue Chevrolets were used for the road rage incident. The first blue Chevrolet seen is a 1966 model (rectangular tail lights) which changes to to a 1968 model (round tail lights) during the incident. In the long shot after Ponch buys the flowers, it is a 1966 model again. In the following scenes, it is a 1968 model again. When it is seen running off the road and overturning, it is a 1966 model.
No fuel is leaking from the tanker as it passes behind Jon and Ponch. Seconds later, they spot a trail of fuel where they had just been standing.
The fire truck that pulls up is a smaller rescue truck. The one that goes after the tanker on fire is a larger pumper, note the stacked hoses on the rear.
When going after the tanker on fire, the driver of the fire engine says "Right, Captain". The smaller rescue truck on scene disappeared and was replaced in subsequent scenes by the larger fire engine. Neither of the original firefighter/paramedics was a fire Captain.
Neither firefighter is wearing their heavy coats or helmets on the car crash, yet when the "Captain" is getting into the fire engine, both are wearing their heavy coats and helmets.
After the suspects are handcuffed, Jon and Ponch ignore police procedure for domestic disturbances- split up the combatants.
The title Green Thumb Burglar is legally incorrect. To commit a burglary under California penal code section 459, one must enter something such as a structure or vehicle with intent to commit a crime. Stealing shrubbery alongside a road would simply be theft.
The flare was placed on the road in front of the vehicles and the accident but they are placed to warn oncoming vehicles as as this was a freeway, the traffic didn't come that way.
When Baricza writes down the BOLO information regarding the Cal Trans crews, the vehicles outside his car (orange station wagon, white van with red stripe, and yellow pickup) are the same ones from Baby Food (1977) when he was writing down the alert for the tainted baby food, only his car was further ahead for the baby food alert. This indicates stock footage was used for both of these scenes.
After leaving the afternoon briefing, footage from the opening credits where the motorcycle officers pass a blue flatbed truck on the freeway is reused.
The truck on fire is shown as being on the freeway, yet when Ponch is alongside it, the background is from an urban street with turn lanes and side streets, none of which exist on a freeway.
While talking to Getraer for the first time, Jon omits his actions and adds in false actions of the Cal Trans workers in the arrest of the road rage drivers. This was likely done to bolster Ponch with Getraer due to the complaint Getraer had just mentioned.
After Jon and Ponch pull HR Pufnstuf over, the crew and cameras can be seen in their reflective sunglasses when they are talking to each other.
As Jon & Ponch chase the plant thieves the hand of a fourth person is visible inside the orange truck even though only three thieves are supposedly in the vehicle.
While pursuing the Cal Trans truck, Jon calls in that they are on the Hollywood Freeway when the exits shown correspond to the Golden State Freeway.
Jon calls in the road rage crash as being on the westbound San Bernadino Freeway (I-10) west of Herbert, however when he recounts the Cal Trans workers replacing trees to Getraer, he says it was on the San Diego Freeway (I-405). The freeways are in different parts of LA County.
After the tanker catches fire, the officers run toward their vehicles, however Lew Saunders takes a couple of steps and then simply steps out of the camera frame- not toward his car.