Once you operate that radio (assuming the crew breaks SOPs to allow you on the flight deck) and speak to the American/Russian/Indian/Israeli/British (you get the picture) air traffic controller I wonder how long you have before scrambled fighters have you in their targets and at the mercy of their itchy trigger fingers? Don't fly too close to any towns, tower blocks, government buildings, power stations or airports etc
Then to make things REALLY interesting, the weather is crap, the fuel is low and the autopilot has deflated...