Appeal of fines and penalties must be made in writing, within five calendar days, to the director of safety and security department. The owner of the vehicle shall be entitled to a hearing with the director of the safety and security department or designee within two business days of any impoundment pursuant to WAC 132Y-100-106. The owner may recover the vehicle before hearing by posting a bond in the amount of the sum of any past due fines plus any fine due for the impoundment infraction plus impoundment cost. In the event that the owner is determined at hearing to be not liable for the impoundment infraction, the amount of the sum of the impoundment fine plus impoundment costs will be returned.