"Cambridge police officers have been ordered to launch a strenuous campaign designed to wipe out overnight parking in the vicinity of Harvard," Timothy F. Leahy, chief of police, announced yesterday.

"Every so often, the officers neglect to enforce the law prohibiting parking after 2 o'clock in the morning, and it is necessary to have them clamp down on the boys," the Cambridge police chief added.

In conjunction with the parking ultimatum, Chief Leahy explained that he was cooperating with the H.A.A. in closing Boylston, Eliot, Winthrop and South Streets to vehicular traffic on the afternoons of major football games.