Sounds pretty tame.
Except for part where the cops lied about Mexican carry. The detective didn't text that. Not when its traceable back to him. Cops might lie to citizens, but I can't see a detective exaggerating to the cops who are going to investigate.
And, except for the part where cops investigated a human right, an enumerated right.
Does Nevada have a Sunshine Law/Freedom of Information statute? It might be kinda interesting to see what was texted. "My wife won't shut up until somebody checks out this guy open carrying a gun. Can you send somebody to check him out?"