you should be able to post the notice all you want.
People have been doing this with RIAA and DMCA notices online (music/movie/etc... piraters). Some law firms have started putting copyright notices on them, but from what I've seen, they don't really have a leg to stand on if they want to bust you for their "copyright".
If it's an actual subpoena, I don't think they can do anything about stopping you from posting it, as that's an actual legal document, that should be public. The only way they can keep that private is by court order.
I may be talking out my ass here, but that's my understanding of things.
Last edited by schweeb; October 26th, 2007 at 04:25 PM.