If a county adopts code home rule status under the provisions of Article XI-F of the Maryland Constitution and this article, it may exercise those powers enumerated in § 3 of Article 25, in subtitle "Draining Lands" of Article 25, and in § 5 of Article 25A, except for subsections (A), (P) and (S) of § 5 of Article 25A, of the Annotated Code of Maryland, 1957 Edition as amended; and no county adopting code home rule status shall be excepted. These powers are in addition to any powers any county may now have under any public general or local law applicable to the county.