(1) Persons engaged in the business of operating tow cars for hire shall display inside their place of business a sign containing the schedule of rates for all tow car services and vehicle storage. The letters and numerals on the sign shall be machine or block lettered and readable from the areas of the business open to the public.

(2) Tow cars when used to remove motor vehicles from parking facilities as defined in section 5.540 of this code shall have displayed on the tow car in a manner easily read from outside the tow car, the schedule of rates for impounding and disconnecting a motor vehicle. The sign shall also declare no fee shall be charged if the operator of the motor vehicle returns to the motor vehicle before it is connected to the tow car. The letters and numerals on the sign shall be machine or block lettered and readable from a distance of 20 feet.