of this section. Any final order so entered shall be subject to appeal under section 1291 of title 28, United States Code. Any disobedience of any final order entered under this section by any court shall be punished as a contempt of the court. (6) Applicability of Federal Rules of Civil Procedure The Federal Rules of Civil Procedure shall apply to any petition under this subsection, to the extent that such rules are not inconsistent with the provisions of this section. (l) Disclosure exemption Any documentary material, answers to written interrogatories, or oral testimony provided under any civil investigative demand issued under subsection (a) shall be exempt from disclosure under section 552 of title 5, United States Code, as described in subsection (b)(3) of such section. (m) Definitions In this section— (1) the term custodian means the custodian, or any deputy custodian, designated by the Attorney General under subsection (j)(1)