[nolim1t]

They didn't really seize anything.. Not your keys not your coins

[lxgr]

A wallet is literally someone's keys. The big question in this case is whether it's the only copy of their keys.

[silasdavis]

Since they know the addresses they can certainly watch the funds. I wonder if he has any release monitoring conditions. He'd need to find a jurisdiction and ways in which to spend it.