It's no secret that parking in the city is a bitch. So we've enlisted local parking guru and author of Finding the Sweet Spot, David LaBua, to dish out weekly tips on navigating the ins and outs of city parking.

By now you've heard of the SFMTA's new quest to squeeze over $100 million out of city drivers, and probably cursed them under your breath because of it. They're going to try to get you where it hurts, so take this quiz to know exactly what they can and can't punish you for. Check back after lunch for the answers and David LaBua's scathing review of this brutal new world of parking fines.

Which of these is not a real parking law for which you can be ticketed?

A) The 72-hour law

B) The 3% law

C) The 18 inch law

D) The 100 foot law

E) The 4 hubcap law

F) The 1.72 degree law