The police create the hazard and then can ticket others because of it. I believe a law requiring that traffic stops be moved off of highways once the "victim" is stopped and notified. This would be safer for all involved. But it would take up a few more minutes of the public servants time and less time to inconvenience others.
I wish the police would focus more on right of way violations than speed infractions. Speed is usually never the cause of an accident. If speeding caused accidents we would all be dead.