Of course such a modified app wouldn't be accepted into Google Play or any other official app store, it would have to be sideloaded.

It doesn't have to be a modified version of the original app. It can just be an app that generates very similar looking graphics and animations, the "Funny Finnish Driving License Generator" or something. You think this would still break the terms/rules?

Such an app might first get accepted into an app store (by accident), but it would surely break the rules and get taken down pretty quickly.