Any employee or agent of the town, while in the necessary pursuit of his official duties with regard to the water or sewage disposal systems operated by the town, shall have the right of entry, for access to water or sewer installations, at all reasonable hours, and after reasonable advance notice to the owner, tenant, or person in possession, upon any premises and into any building in the town or in the county served by the town's water or sewage disposal system. Any restraint or hindrance offered to such entry by any owner, tenant or person in possession, or the agent of any of them, may, by ordinance, be made a misdemeanor.