(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.