My plan is to implement a RDS TMC solution. This mean my application is collecting traffic messages in background and display it later. (Sorry but working in Switzerland only at the moment! Location code is country depended.)

So I think I need the following menu structure:
TMC: Turn service on (means start collecting messages)
TMC: Turn service off (replace the menu above)
TMC: Show messages (visible only if service is turned on)

Maybe I implement some kind of submenu like you did in your trivia game. Think this shouldn't be a big problem.