Great to hear this. In addition, he should bring a clothespin for entry thru the back entrance for his nose.... and make sure and bring a box meal (lunch, dinner, as appropriate). He may be there a few hours, and should not go hungry.
He can get a sealed, Glatt-Kosher box-meal from El Al on his way there.
Much like the story of Orpheus in Hades, BiBi should not let ANYTHING pass his lips that isn’t completely tested and sealed.