Notice of the hearing shall be posted on each street adjoining the property involved for a period of at least fifteen continuous days prior to the date of the hearing. An affidavit of posting signed by the applicant with a photograph of the sign(s) posted shall constitute prima facie evidence of fulfillment of the required posting. The expense of such posting and affidavit shall be paid by the applicant. Signs shall be removed within three days after the close of the hearing. (Ord. 1987-1 § 1(I)(part); prior code § 5-2-3(A)(6))