Earlier quoted context omitted.
Hmm, this appears to be a relatively new power. https://www.propublica.org/article/remember-when-the-patriot...
Wasn't there a fuss about Robert Bork (Supreme Court nominee) having his video rental records disclosed? Long before the Patriot Act.
But that's all neither here nor there. We're discussing a court order. No law prevents a court from ordering the disclosure of video rental records, even today with the Video Privacy Protection Act, because the VPPA allows disclosure "to a law enforcement agency pursuant to a warrant issued under the Federal Rules of Criminal Procedure". Because that's what courts do. There's really nothing that is protected from court orders in the US, except for a few well-known, very narrow exemptions.