When the highway patrol car leaves the club the first time, viewers are supposed to believe it's nighttime since the car's headlights are on, yet the car casts a distinct shadow on the ground. This indicates the scene was shot during the day and a filter was added to make it look like night.
The Sheriff displays incompetence in that he was serving a search warrant, yet the only searching he performed was visual upon walking into a room, so only items in plain view would be seen. Under the warrant, he could have, and should have, physically searched, which means looking in areas where an instrument of the crime or other evidence could be concealed. Had he done so, the gambling tables and paraphernalia would have been revealed.