You can turn if off in settings > iCloud. Either temporary for a day and auto back on, or permanently until you turn it back on.

Yep, but one cannot script that, make it a part of a bash or automator actions, which is a problem.

	▲	dgsii a few seconds ago \| parent [-]
		Have you tried recording UI events in Automator and saving it as an Application? Then you could execute the .app via script. I haven't done this but in theory it should work.