Detect rift without launching store?

How can I detect that the rift is present without launching the store (Oculus Home)?  Our app allows the user to choose to use the rift at each launch, but the store is already up and running by the time we boot up and prompt the user.  It would be so much nicer if we could hold off on the launch till we need access to it (or if it could be minimized, etc).  

Even more annoying, if you manually close the store then it automatically opens back up at shutdown, even if we were not using the rift.  To add insult to injury the store then locks the rift out so we can't access it on our next launch, unless you manually shut it down (where is the exit key?).

Anyway it is driving me crazy, and I'm sure it is bound to annoy our users as well.