I made an post back when DoNotDisturb was released and updating the App through SingleApp mode worked, albeit was a bug in 11.2. But that bug has now turned in to a feature. [Link].
So the work around to this thread is to turn on DnD and then send the update, and when you DnD time comes off (say 4am) the app will update.
But preferably I would have liked this as an option, but with a time frame window that you could set for updates. The Meraki Wi-Fi has a firmware update window(!).