Construction guy at work was talking about getting nailed going to work by a CA CHP on a bike. He said he has a detector because he travels a lot out of town on jobs.
He got ticketed for 15 over on the highway. His detector never chirped which made him mad because he says it always warned him before.
Motor cop who stopped him chuckled when he saw the detector on his dash. He told the guy he "Hasn't turned his bike's radar unit on in months and he didn't even know if it worked anymore."
He wrote "OBS" on the ticket as the way of determining his speed which he took as "Observed" or maybe "Observed by Speedometer." Unfortunately, he did say he was weaving through traffic and going faster than anyone else which probably drew attention to himself.
Just a bad round of luck.