Okay, here's an example from a couple of years ago from right here on FR.
A lady had moved from New York to Florida, but failed to notify the NY state department of motor vehicles (or she notified them, and they lost it).
Anyway, she got a FELONY charge out of it. There were some other details that I forget, but I remember enough to know that she got a raw deal.
Name a law that we don't know about that we break, either occasionally or routinely.
I don't know all of the edicts in my state, let alone yours. If you're really curious, read your state edicts. I would concentrate on traffic laws (which for some reason you don't count, even though there can be severe consequences for breaking them), and edicts which deal with things that you're involved in (e.g., if you like to fish, look up the state edicts on fishing).
Also, try reading the federal tax statutes. Are you really sure you've declared everything on your 1040? Keep in mind that Business Week took a typical 1040 to 40 different accountants and got something like 20 different answers. So 19 of them were breaking the law.
Anyway, I find it laughable that anyone can assert that they know all of the laws and obey them.
I don't know all the fishing and hunting laws. However, were I to apply for a fishing or hunting license, I would make sure I understood those laws.
Same with opening a restaurant, applying for a mining permit, learning to fly a plane, getting a nursing license, or starting a liquor store. Specialized laws require that those in that business or practice learn them. That is a requirement for getting the license.
Perhaps you are unaware of the phrase "Ignorance of the law is no excuse."