At least once since 911. In one case the F-16s escorted the offender out of the no fly zone, and he was met at his destination by police, somewhere down around San Antonio, Seguin or maybe New Bruanfalls, I forget but I know it was at least 18 months ago, because I was still in SA at that time. And now I'm in Killeen, near Ft. Hood, where the fighters deploy to when Bush at the Ranch. (West Ft. Hood was once a SAC base. The runway is now used jointly by the military and scheduled airlines.). I live a couple of miles from the north end of the runway.
So, do the press still make a bee line for D Street when they hit town?
I live on the north side of Killeen, near the impact area. The fighters fly over going to patrol over the ranch. If memory serves me the plane in question was out of New Braunfels.
The Air traffic Controllers out of Gray Airfield are VERY good at directing aircraft away from the no-fly zone. I am taking flight lesson out of Gatesville and the controllers always make sure I know which way to NOT to go.....and I am REALLY grateful..