Someone Is Getting Ripped Off By Metro Police

At tonight's NASCAR camping World truck race, from Las Vegas Blvd. and Nellis to the race track, there were at least 3-4 motorcycle cops at every intersection, for a total of about 5 intersections.
All these cops were doing were standing around, talking amongst themselves.  They were not directing traffic, not monitoring traffic and allowing traffic to back up by making sure that an intersection at the Nellis AFB Hospitals entrance changed from green to red as much as possible, tying to up traffic.
So, why are there at least 3-4 or more officers standing at each intersection when they are probably being paid overtime, when 1 officer could do the job?
Why are these cops standing around when they could be actually out there fighting crime?
Why can't we just hire some private security guards, Metro Explorers or Metro volunteers to man the intersections at a cheaper cost and they could do a better job than the cops who just stand around doing nothing.
Please don't confuse the Nevada Highway Patrol with Metro.  The NHP actually works out there- directing traffic and moving traffic along, unlike Metro.
Someone is being scammed here- either the Las Vegas Motor Speedway- if they are paying for the cops or the taxpayer- if they are paying for them. 
Metro is looking to raise our taxes to pay for more cops, but if they have that many cops out there, standing around doing nothing while collecting overtime, then maybe they don't deserve the money and the increased taxes.