shall remove the material within seventy-two hours after receipt of written notice of the posting or seventy-two hours after the date of the event advertised on the posted material, whichever occurs first. Failure to remove the posted material within the time specified shall be punishable by an additional fine of not less than $100 nor more than $200 per posted material, or community service of not less than ten hours nor more than twenty hours, or both. Such additional penalties shall not be imposed unless the person received written notice of the posting or was responsible for posting material in violation of § 445-114.