What's That Cop Thinking?

This made for a change! Once again, at the easiest spot to catch bad driving where the 60 splits off from the 5 south... only this time, there was something different! I had seen this cop heading down the 5. He got over into the 60 exit lane and turned his lights on. No one in front of him, hardly anyone behind him, He started slowing down. I thought he was going to do the typical thing and get back onto the 5 south lanes, but no. He kept on onto the 60 transition. I have no idea what he was doing, going slow and putting his lights on, the 5 and the 60 were both moving along well (the 5 better than normal, actually). Well, one thing he did anyway, I didn't see a single other person getting out of the 60 transition lane at the last moment for a change!