This chapter shall not apply to persons, firms, or corporations engaged
in the business of carrying passengers for hire, both interstate and intrastate,
between regularly established points and on regularly established time schedules,
nor to the operator of a motor vehicle engaged in the business of transporting
school students for hire, or to municipally sponsored taxicab services.
No person who has been transported by a taxicab shall refuse to pay
the fare for such transportation as such fare is shown on the taximeter or
zone meter.