The US court system is not nearly as utterly corrupt as you seem to think. Even individual people often fight law enforcement agencies in court there, and win. Certainly a Fortune 100 company would stand a better chance. (Maciej might be at a bit of a disadvantage, being a foreigner, and one who's written publicly about a run-in with law enforcement in China, at that.)
There's a pretty large range between Pinboard (10 000 customers, maybe? Two employees? Annual revenue in the range of $100k? I'm guessing here) and Rite Aid (109000 "associates", maybe 20 million customers, $26 billion revenue). More than five orders of magnitude, actually.