Sounds cool! In my dreams. Local kid flew the 2-seater F16 home one summmer day and gave someone a ride. Too bad it wasn't me.
Also, it ain't cheap to fuel an F16, but it doesn't cost 150K. Jet fuel is measured in pounds per hour of fuel flow. Most fighters are turbojets and burn more fuel than turbofans. Plus, they probably stayed low in altitude where fuel burn is high. But... even with all of that, let's just say that they were burning something around 1200lbs of fuel perhour on their joyride. And say that it lasted an hour. At roughly $2-3 a gallon for JP or Jet-A fuel (dunno the current price and what JP rating they fuel the F16 with), you're looking at roughly $2500 to 4000 worth of gas there. Even $15,000 would be damn high for all but a long trip (and that would require arial refueling).