It was an IF. We will NEVER know why he pulled that U-turn. You're not quite as bad as the guy that was whining and complaining about running a school bus stop sign and getting a ticket for it, but close.

As far as cops running red lights. People can call and complain on them so they dont do it. Sometimes, (and for this story for instance) they cant run code to a call/ assist an officer because it will give away what is going on. So They may fly to the location, with out the blues, and dont have time to stop at a red light, so they flip the blues to run it legally. A cop I was riding with had to do this one night because he got a call to assist an officer having trouble with a pulled over suspect. 3 occupants in the car and all were on parole. And considering there's a 77% recidivism rate of crime, you do the math. The chances of one of them being involved in something, or having something was definitely there. So we had to rish to the scene... hmm, where? IN A GAS STATION. Dont assume they are running it because they are to lazy to wait.