Any local agency requested by an applicant to give written approval as required by this chapter may within fifteen (15) days after the applicant has filed his application apply to the Board of Commissioners for reimbursement of expenses reasonably incurred in reviewing such request. Upon a finding that such expenses were reasonably incurred the Board of Commissioners shall reimburse the local agency therefor from the funds of the permit fee. The Board of Commissioners shall prior to the first scheduled date of the festival return to the applicant that portion of the permit fee remaining after all such reimbursements have been made.