When the consumer is unable to deliver the motor vehicle to the motor vehicle repair facility during business hours and the consumer has requested the motor vehicle repair facility to take possession of the motor vehicle for the purpose of repairing or estimating the cost of repairing the motor vehicle, the motor vehicle repair facility may not undertake the diagnosing or repairing of any malfunction of the motor vehicle for compensation unless the motor vehicle repair facility has complied with all of the following conditions:
If the consumer's authorization is oral, the motor vehicle repair facility shall make, on both the written estimate or firm price quotation and the invoice, a notation of the name of the person authorizing the repairs, the date, the time, and the telephone number called, if any. Any charge for parts or labor in excess of the original estimate must be separately authorized by the consumer as provided in subsection (b) of Section 15 and in Section 25.
815 ILCS 306/35