(a) The commissioner shall give due consideration to any recommendations of the board and to any reports, records or opinions submitted pursuant to sections 14-46a to 14-46g, inclusive, but such recommendations, reports, records or opinions shall be merely advisory and not binding on the commissioner.

      (b) Any person who is the subject of any inquiry under sections 14-46a to 14-46g, inclusive, who refuses to submit to a physical examination or provide other information requested by the commissioner or board shall be considered unfit to operate a motor vehicle until he complies with such request.