This got me thinking. The street, so the quote goes, finds its own uses for things. What if we are the malware in a different scenario? In other words, such apps, once they exist, can and will be used at some point as a form as "diminished reality" app, where the user is not the administrator.
In an increasingly digitally mediated world, the map is the terrain. The map, it's content, and its parameters of use constitute an instruction set. Functional constraints set by location and content of that place can become a type of physical DRM, with your mediated view locked out where you lack adequate "rights". You may find yourself one day having to say yes to an End User License Agreement (EULA) as you walk outside your own home, or boot the self-driving car to go to work. You may subscribe (or be subscribed) to seeing as a service. Good luck out there.