It is unlawful for any person, either as an owner, agent, employee, or otherwise, to operate, conduct or otherwise be engaged in the business of providing ambulance services or convalescent transport services in the city, or to transport patients in the city by means of an ambulance or convalescent transport vehicle or to operate the same upon the public streets within the city, without having a license or permit issued by the county of Tulare authorizing the licensee or permittee to provide such services within the service area of the county of Tulare, within which the city is located. (Prior code § 4526)