Upon the entry of a stop order under Section 31115 the commissioner shall promptly notify the applicant that it has been entered and of the reasons therefor and that upon receipt of written request the matter will be set down for hearing to commence within 15 business days after such receipt unless the applicant consents to a later date. If no hearing is requested within 30 days after receipt of the notice and none is ordered by the commissioner, the order will remain in effect until it is modified or vacated by the commissioner. If a hearing is requested or ordered, the commissioner, after notice and hearing in accordance with the provisions of Chapter 5 (commencing with Section 11500) of Part 1 of Division 3 of Title 2 of the Government Code, in connection with which the commissioner shall have all of the powers granted thereunder, may modify or vacate the order or extend it until its final determination.