22 CFR 504.13: Procedure in the event of an adverse ruling.

If the court or other competent authority fails to stay a demand or request, the employee upon whom the demand or request is made, unless otherwise advised by the General Counsel, will appear, if necessary, at the stated time and place, produce a copy of this part, state that the employee has been advised by counsel not to provide the requested testimony or produce documents, and respectfully decline to comply with the demand or request, citing United States ex rel. Touhy v. Ragen, 340 U.S. 462 (1951).