(a) Effect on Internet Tax Freedom Act
  Nothing in this section may be construed to modify or supersede
the operation of the Internet Tax Freedom Act (47 U.S.C. 151 note).
(b) Inapplicability to service providers
  Nothing in this section may be construed to - 
    (1) authorize any injunction against an interactive computer
  service (as defined in section 230(f) of title 47 (!1) used by
  another person to engage in any activity that is subject to this
  Act;

    (2) authorize any injunction against an electronic
  communication service (as defined in section 2510(15) of title
  18) used by another person to engage in any activity that is
  subject to this Act; or
    (3) authorize an injunction prohibiting the advertising or
  marketing of any intoxicating liquor by any person in any case in
  which such advertising or marketing is lawful in the jurisdiction
  from which the importation, transportation or other conduct to
  which this Act applies originates.