The issue before the Supreme Court was whether certain requirements implemented by the Port of Los Angeles (CA) were pre-empted by federal law, the Federal Aviation Administration Authorization Act of 1994. The local regulation required a company to affix a placard on each truck with a phone number for reporting concerns, and to submit a plan listing off-street parking locations for each truck The Supreme Court held that the the federal law pre-empted the local regulation.
What has this got to do with music? In delivering the opinion of the Court, Justice Kagen wrote (at p. 2 of the slip opinion):
...a company may transport cargo at the Port in exchange for complying with various requirements. The two directly at issue here compel the company to (1) affix a placard on each truck with a phone number for reporting environmental or safety concerns (You’ve seen the type: “How am I driving? 213–867–5309”) and (2) submit a plan listing off-street parking locations for each truck when not in service. [Emphasis added].
That phone number, of course, is from Tommy Tutone's classic 1980s one-hit wonder "867-5309/Jenny".