Any person authorized under § 20-25 to celebrate the rites of marriage shall be permitted to charge the parties a fee for the ceremony not to exceed $75 for each ceremony. Such person and parties may negotiate payment for any additional services agreed to by the celebrant and the parties. Additionally, such person shall be permitted to charge the parties travel expenses to and from the marriage site. If conveyance is by public transportation, reimbursement shall be at the actual cost thereof. If conveyance is by private transportation, reimbursement shall be at the rate specified in the current general appropriations act of the Commonwealth. In either event, the actual cost of the ceremony together with travel expenses shall be given to the parties at least three days prior to the marriage ceremony.