In any case where denial, suspension, or revocation proceedings are pending before the Bureau of Alcohol, Tobacco and Firearms, or notice of denial, suspension, or revocation has been served on the licensee and he has filed timely request for a hearing, the license in the possession of the licensee shall remain in effect even though such license has expired, or the suspension or revocation date specified in the notice of revocation on Form 4500 served on the licensee has passed: Provided, That with respect to a license that has expired, the licensee has timely filed an application for the renewal of his license. If a licensee is dissatisfied with a posthearing decision revoking or suspending the license or denying the application or imposing a civil fine, as the case may be, he may, pursuant to 18 U.S.C. 923(f)(3), within 60 days after receipt of the final notice denying the application or revoking or suspending the license or imposing a civil fine, file a petition for judicial review of such action. Such petition should be filed with the U.S. district court for the district in which the applicant or licensee resides or has his principal place of business. In such case, when the Director finds that justice so requires, he may postpone the effective date of suspension or revocation of a license or authorize continued operations under the expired license, as applicable, pending judicial review.