(a) “Rapid transit,” as used in this part, means the transportation of passengers only and their incidental baggage by means other than by chartered bus, sightseeing bus, taxi, or any other motor vehicle not on an individual passenger fare paying basis, except as otherwise provided in subdivision (b).
(b) Nothing in this section shall be construed to prohibit the district from any of the following:
(1) Leasing its buses to private certified public carriers.
(2) Providing school bus service for the transportation of pupils between their homes and schools.
(3) Providing charter bus services to governmental agencies, if comparable service is unavailable through privately operated bus companies, and to special events, other than regular and preseason scheduled professional and amateur sporting events.
(c) Notwithstanding subdivision (a) or paragraph (3) of subdivision (b), nothing in this section shall be construed to prohibit the district from providing charter bus services, which are incidental to the holding of the Olympic Games in Los Angeles, to any party or to any event during the period from May 1, 1984, to September 30, 1984, inclusive, if the district does not curtail existing, regularly scheduled services.