One picked up his daughter who worked near me and got off at the same every afternoon. What shocked me is the amount of people who slow down instead of honking, or passing on the right lane, or tailgating.
The fact that they think their speedometer is absolute and everyone's read the same explains their mindset. I drove a housemate's Hyundai excel that red 10kph low and people would blow by on surface streets with speeding cameras when you were "going the limit".