After the cancellation or revocation of a permit or certificate, or during the period of its suspension, or after the expiration of its permit or certificate, it is unlawful for a charter-party carrier of passengers to conduct any operations as a carrier. The commission may either grant or deny an application for a new permit or certificate whenever it appears that a prior permit or certificate of the applicant has been canceled or revoked pursuant to Section 5378 or whenever it appears, after hearing, that as a prior permit or certificate holder, the applicant engaged in any of the unlawful activities set forth in Section 5378 for which his or her permit or
certificate might have been canceled or revoked.