Who do sheriffs report to?
The Mayor is either a Pot Barron, or in the pocket of Big pot.
Jurisdictionally, state troopers can be told to bugger off.
Like Vampires, they have to be invited in.
The Sheriff can not only falsify his report on this incident but he doesn't even have to commit anything to paper (or database.).
Absolute power = Absolute corruption.
Although if he's an ass about his absolute power, the citizens vote in some other bastard who's going to abuse god and country with some penitence come the next election cycle.