From what I see the cop was at a perfect 90 degree angle when the biker hit him. I think he pulled out to stop the guy for speeding. Otherwise he would have been at more of an angle if he was just making the left into the one way street.. If you pause it I don't think the cops tires are turned at all, and it doesn't seem like he is moving an inch. I simply think he wanted to stop the guy for pulling the wheelie and decided to pull out in front of him to do it... If he was trying to stop him he should have had his lights on in the first place. I wonder how the biker faired???