Not according to the article I read.

Here.

"The threat of an attack on US soil was seen as such a remote possibility at the time that the 121st fighter squadron at Andrews Air Force base outside Washington had no fully-armed fighter jets on standby.

With only 105 lead-nosed bullets on board, Penney and Colonel Marc Sasseville took to the skies, while two other F-16s waited to be armed with heat-seeking AIM-9 missiles, Penney told C-SPAN television this week."