As a result of the recent oil crisis, 9.9 million of California's 15 million motorists were subjected to an odd-even(单双数的) plan of gas rationing(限额配给). The governor signed a bill(法案) forcing motorists with license plates ending in odd numbers to buy gas only on odd-numbered days, and those ending in even numbers on even-numbered days. Those whose plates were all letters or specially primed had to follow the odd-numbered plan. Exceptions were made only for emergencies and out-of-state drivers. Those who could not get gas were forced to walk, bike, or skate to work. This plan was expected to eliminate the long lines at many service stations. Those who tried to purchase more than twenty gallons of gas or tried to fill a more than half filled tank would be fined and possibly imprisoned. All of the following are true except that ______.