and there are laws requiring women to wear skirts past their knees after 5pm. doesn't mean they are enforced. if your city enforces the skid law, then you will get a ticket. i've ridden brakeless in NC, CA, and WA and broken the law in all three. doesn't mean i'm not just lucky that no one's issued me a ticket yet.
i'm of the opinion that cops have MUCH better things to do than write tickets for people on bikes but luckily enough for me, any cop who's noticed my brakelessness (or the rare occasions where i forget to wear a helmet) has agreed with me. i should probably duct tape a helmet to my head 24/7 and only ride my cx bike from now on but... well... life happens and track bikes look AWESOME without brakes.