The side window on the chief's police car is shot out twice during the gunfight, once by the rifle and then by the shotgun.
In the gunfight at the end, the man with the shotgun fires it at least 14 times without reloading. This model of pump shot gun holds 4 rounds plus 1 in the chamber for a maximum total of 5 rounds. Since he had racked the slide when the truck door was opened, the shotgun would only have had 4 rounds in it when he began shooting.
The patch on the sheriff and deputies uniforms are Georgia Sheriff's Office patches and not Mississippi.
When Jamison and Sweet are sitting in their car on stakeout, they are discussing how long the marijuana business has been going on. The Chief responds to them over the radio from the station, even though neither officer had made their remarks over the radio.
When the Sheriff arrives at the end, the police car's siren is heard but the blue light is not on.