It shall be unlawful for any commercial vehicle relocator:
Apart from any other penalty or liability authorized under this Act, if after a reasonable effort, the owner of the vehicle is unable to make telephone contact with the relocator for a period of one hour from his initial attempt during any time period in which the relocator is required to respond at the number, all fees for towing, storage, or otherwise are to be waived. Proof of 3 attempted phone calls to the number provided to the police department by an officer or employee of the department on behalf of the vehicle owner within the space of one hour, at least 2 of which are separated by 45 minutes, shall be deemed sufficient proof of the owner's reasonable effort to make contact with the vehicle relocator. Failure of the relocator to respond to the phone calls is not a criminal violation of this Chapter;
625 ILCS 5/18a-300