When I was a kid I really liked a LucasFilm point and click adventure called Zak McKracken and the Alien Mindbenders. It had a similar anti-piracy measure. The game came with a passport book with codes for you to enter every time you would fly on a plane. If you entered the code wrong too many times, you'd get sent to jail and the game would end. But the game also came with a mock tabloid newspaper (the main character was a tabloid reporter), and the newspaper articles contained hints on what to do in the game.