Errr....
A. The 30 minute thing into DCA went away years ago and has not been reinstated.....as I just flew in/out of DCA from MCI last week for Police Week and talked to the Airport Cops at both places (I was flying armed).....and nothing was said when we talked about things.....
B. TSA isn't supposed to be checking ANYTHING (to include the boarding area or A/C)....it's supposed to be the Airport LEOs.....
Reason 999,991 why I love being able to fly armed and not deal with those TSA morons......