Can't see that happening. I attended Embry Riddle Aeronautical University for a while. The college is situated on the north east end of the Daytona Beach International Airport. The college's aircraft ramp is connected right there via taxi way.
A day before the Prez arrived, a C5 arrived and we were all under the assumption that the motorcade was in there.
The next day, Secret Service Agents armed with Sniper Rifles where all walking around the roof of the terminal. I believe there were more on the ramp with semi-automatic rifles.
Most of the college students had scanners/ nav com handhelds/ or Ham Ht's and were listening to the air traffic control. It really gives you a patriotic feeling when you hear "Air Force One to Daytona Tower" "Air Force One, Cleared to Land Runway 7R" and then the huge blue bueaty breaks out of the clouds.
Anyways.. a lot of the college kids where standing on their cars to get a better view. The secret service was in contact with our campus security and had them send over officers to get the students off the cars or else they would be arrested. And this is over a mile away from where the plane was going to touch down. If they have that kind of radius or more on lockdown, and you can see the visibly armed CIA's. I can't even imagine how many were plain clothes/normal looking.
There's no way that graffiti is real.
EDIT: whoops.. Forgot to read the whole thread before posting