(3) Charging a customer for repairs which were not authorized in writing or charging a customer a price for agreed-upon maintenance or repair services which price, including parts and labor, was not authorized in writing or displayed in a clear and conspicuous manner on the premises. If the repair shop is unable to obtain advance written authorization because the specific repairs or costs thereof are not known when the vehicle is delivered for repair, the customer shall be so informed and shall be afforded the opportunity to select one of the following options:
(i) No repairs may be performed until the customer is notified of the exact nature of the repairs to be performed and the total price to be charged, including parts and labor and the oral or written authorization of the customer to perform the repairs is obtained.
(ii) Repairs may be initiated, but, if repairs will exceed a price specified in advance by the customer, the oral or written authorization of the customer to proceed further shall be obtained.
(iii) Repair of the described problem may be authorized without limitation of price provided the customer is informed of the hourly labor rate prior to commencement of repairs.