"There’s really no excuse for not knowing ..."

... that if you don't check in with the government before wiping your bum, some idiot may blow $9,000 on extra toilet paper and blame you for it.

I've looked and looked and looked, and I can't find anything in the Constitution about the airspace around POTUS being "restricted." Nor are bullshit security theater antics covered in Article I, Section 8.