Of course some websites had to do it in an even dumber way than the law asks for. Like slashdot: http://i.imgur.com/5Fp0nmo.png
This is what greets the French every time slashdot decides to forget you agreed to let them put cookies on your computer and you need to click continue before you can get to the actual website.
The law actually made it worse for the people it's supposed to protect (those who might refuse cookies for privacy?) because those warning then will stick around like glue if they can't give you a cookie to remember you accepted their existence.