Why did the police officer stop the driver?

W: OK. May I see your driver’ s license, please?
M: What? Did I do anything wrong?
W: License, please, and your car registration.
M: Oh yeah... It’ s here somewhere in the glove compartment. Yeah, here it is.
W: Sir, did you realize you were speeding in the school zone?
M: What? No, I didn’t. That’ s probably because my meter is broken. I mean " mile functioning".
W: Yes, you were going 50 miles per hour in a 20 miles per hour zone. And...
M: What?
W: And you failed to come to the complete stop at the cross road back there.
M: Rolling stops don’ t come.
W: And one of your brake lights is out.
M: Oh...
W: You were not wearing a seat belt. And your driver’ s license’ s expired six months ago.
M: And...Your name is...Officer Smiths. Hey! Are you related to the Smiths in town? My wife’ s cousin’ s husband, I think his name is Brad, works for the police department here. Or was there a fire department? Anyway, I think you might be good friends, and you know, ...
W: So what’ s that got to do with it? Do you want me to re-hold your car right now because of these violations?
M: No, of course not.
W: OK, then. Here is your ticket. You can either pay it or call him to pay in the final minute. Have a nice day!
M: Do you take cash?