You Can't Eat Peanuts In Church and Other Little-Known Laws, by Barbara Seuling (PB, 1976, $1)
Some examples,
In Glendale, Arizona it is against the law to back up your car.
In Idaho, you can not fish for trout on the back of a giraffe.
In NY, "a railway company which negligently throws a passenger from a crowded car on a trestle is held liable for injury to a relative who, in going to his rescue, falls through the trestle." ( Here is my question- is it possible to throw a passenger off a railroad car and it not be negligence?)
These are supposed to be REAL laws, or at least they were when this book was published. Enjoy! Look for this in the comic section, avail. 1/18.