How long until Waze-like "ads-when-stopped" show on your heads up display? Or "I see you're navigating to McDonalds, would you rather go to Burger King and get

How long until Waze-like "ads-when-stopped" show on your heads up display? Or "I see you're navigating to McDonalds, would you rather go to Burger King and get half off your Whopper meal?"