@darius
Pretty much what libraries did during the patriot act Era. There was an auto-gag order for any demanded information. Many libraries then instead put out something akin to, "your information may not be private her," if they got hit.

It also put compulsion below the subpoena level.

American Library Association and American Civil Librities Union v. The United States put an end to that year's before most of the act expired on its own.

Sorry for the infodump. Felt relevant adjacent.