I was thinking the same thing. You have to have something from McDonalds installed to tell it to launch something that would ask you to download an app. A beacon ~(as Chrome can be used for beacon notifications) is the only thing I could think of unless the user had downloaded an app that had a relationship with McDonald's.
Waze is the other thing that can pop up notifications for services when you get near, but you would normally know if Waze was running.
Biting the hand that feeds IT
