In addition to any other penalties authorized by law, upon conviction of any person for violation of any provision of § 29.1-738, the court shall order such person not to operate a watercraft or motorboat which is underway upon the waters of the Commonwealth for a period of twelve months from the date of a first conviction or for a period of three years from the date of a second or subsequent conviction within ten years of a first conviction. The period specified in any such order prohibiting operation of a watercraft or motorboat which is underway imposed pursuant to this section shall run consecutively with any such order imposed for refusal to permit a blood or breath sample to be taken. A first offense of violating this section shall constitute a Class 2 misdemeanor. A second or subsequent offense shall constitute a Class 1 misdemeanor. In addition, the court shall suspend the person’s privilege to operate a motorboat or watercraft for the same period for which it had been suspended or revoked when such person violated this section. The period specified in any such order prohibiting operation of a watercraft or motorboat which is underway imposed pursuant to this section may be suspended by the court only as authorized in § 29.1-738.5.