8 U.S.C. § 1324d : US Code - Section 1324D: Civil penalties for failure to depart

    (a) In general
      Any alien subject to a final order of removal who - 
        (1) willfully fails or refuses to - 
          (A) depart from the United States pursuant to the order,
          (B) make timely application in good faith for travel or other
        documents necessary for departure, or
          (C) present for removal at the time and place required by the
        Attorney General; or

        (2) conspires to or takes any action designed to prevent or
      hamper the alien's departure pursuant to the order,

    shall pay a civil penalty of not more than $500 to the Commissioner
    for each day the alien is in violation of this section.
    (b) Construction
      Nothing in this section shall be construed to diminish or qualify
    any penalties to which an alien may be subject for activities
    proscribed by section 1253(a) of this title or any other section of
    this chapter.