I only read the opinion summary and the concurrence, but from the summary:

> And, at least as to remote wiping, law enforcement currently has some technologies of its own for combatting the loss of evidence.

And from the rest, once the officers have removed the phone from your person, there's no longer a danger of you wiping it. Of course, I don't want to suggest in the least way that officers will actually /follow/ this guideline, and that lower courts will uphold it, but there you go.