Nope, I'd NEVER say "sorry officer" if I didn't need to - they take it as an admission of guilt.
But they DO do the "attitude test" to see how you speak to them, and then sometimes they hit you harder if you give them any lip or say something that they might not like. Best thing to do is be short, concise, but not rude.
The thing I love most about my car is that they barely ever look at me. I've been followed a few times, even once when I had just given it a stab on a freeway entry ramp, and I noticed that they followed me pretty closely for a few kilometers, so I figured that the car was an undercover and was checking my details before they pulled me over. I'd just jumped onto the freeway, and slowed right down to around 85km/h in a 100 zone because they were following a bit too close. I'd already suspected that it was an undercover car, and was proven right as they went past me a few minutes later and I saw that it had pulled over another car a few more kilometers away. There were plenty of cops out that night, it seemed.