Arguing about the sign

A man was driving down a local street one day and approached a stop sign. He barely slowed down and ran right through the stop sign after glancing for traffic.
What the driver didn't know was that a policeman was watching the intersection.
The policeman pulled out after him and stopped the car two blocks away.
Policeman: "License, registration and proof of insurance please."
Driver: "Before I give it to you, tell me what the heck you stopped me for, man."
Policeman: "Watch your tone sir; you ran the stop sign back there!!"
Driver: "Man, I slowed down, what the heck is the difference!?!"
The police officer pulled out his night stick and began smashing it over the man's head and shoulders.
Policeman: "Now, do you want me to just slow down or stop!!!?