I'm aware that they'd have to, which was why my question is if the government was fine with this scenario. Companies like Boeing do have presences in other countries, and I doubt the United States would appreciate Boeing complying with giving potentially sensitive information over, just because it is court-ordered in a country they do business in. Yet now, morally, they have no leg to stand on (not that they'd care in the first place).
I'm more thinking of how companies will have to twist with this, how it would effect international corporations and trade, and primarily how international agreements are pretty much a trading of concessions: belligerence like this pretty much sets it back.