Reggie Ledoux is seen wearing a towel featuring three characters from the show "My Little Pony: Friendship is Magic." This scene took place in 1995, and the 4th generation of the My Little Pony franchise didn't premiere until 2010.
When Marty's daughter is dropped off in the black Bronco, the narrative suggests the year is "early 2002", but a 4th Generation Toyota 4Runner can be seen in the background. The 4th Generation 4Runner was built from 2003-2009.
As Detective Hart is shown following Dewall, they drive through surge barrier gates on the highway. The year is supposed to be 1995. These gates were not constructed until several years after Hurricane Katrina, which struck in 2005.