When Claire visits the Hotel Rex and orders a drink in the bar, she adds a redder color of lipstick after looking around at the other patrons. When she has a conversation with the bartender, her lipstick is back to its original pink color, then back to the red, a couple of times during their conversation.
The sheriff's uniform was inaccurate due to the fact that he had the usual multiple stars as well as deputy sergeant's chevrons.
The police have the DNA of a missing woman. They also have an unidentified woman's body. In a small town where these are unusual events, over the course of months of investigation they have never compared the body's DNA to the missing woman's DNA.
In addition to the Sergeants stripes, the Sheriff was wearing a Los Angeles County "Deputy Sheriff's badge. The SLO SO shoulder patch and tan over green uniform is authentic.