Note the last paragraph of that: However, I'm serious about saying "at my sole discretion" — if a law enforcement agency wants information, they'd better have a good reason for asking for it... and I don't consider the NSA saying "we want to have all the information you have, just because we feel like it and someone somewhere might be a terrorist" to be a good reason. Also note that unlike the situation with certain illegal wiretaps, I can't give your data to anyone, because it's all encrypted such that I can't read it.

This situation has never arisen, but if I'm confronted by a police officer and enough evidence that I'm sure they could get a court order, I'd rather be cooperative than force them to go through the courts. This doesn't mean that I'd give them any more data than they would get from a court order -- in fact, quite the opposite, since police tend to err on the side of requesting more than they need when going through the courts, and cooperating could change "seize a server" into "get a copy of the required data".