united flight 3954 carried clinton from omaha , nebraska to newark , new jersey on thursday .
met by a town car and a police escort -- on the tarmac -- for what 's likely a short trip back to her chappaqua , new york estate .
follows iowa campaign swing full of controlled interactions , staged conversations and little interaction with real people .
clinton was , however , photographed pulling her own suitcase down an airport concourse .