Speeding is breaking the law and I've done it, often unknowingly but other times intentionally. Judging by the cars passing me, I am far from alone. And yet only two tickets in 35+ years. My point is car drivers are not ticketed as soon as they break the law. Follow any driver for a period of time and you will witness them breaking laws. A lot of them roll through the intersection in front of my house and exceed the 40k speed limit on our street. I'm going to be a bit like Donald Trump and make a bold unsubstantiated statement: drivers get ticketed for 1% of their infractions. And for most infractions committed that's okay. Little harm, traffic flows.

Cyclists do not belong on sidewalks. It's unsafe and disrespectful. Cyclists need to be respectful in the parks too. People and pets first.
I'm okay with cyclists rolling through Stop signs. After all, most Stop signs are the municipalities war on the automobile. Traffic calming more than safety. When I was a kid they were Yield signs.