US ambassador in Tunisia "observes" the election

The US ambassador in Tunisia assumed that he was still operating in the land of America's friend, the dictator Bin Ali. So he went and entered a polling a station.  Tunisian voters who recognized him started chanting against the US and Qatar and he had to leave the scene.  The US embassy in Tunisia merely reported that the ambassador visited a polling station as "an observer".  If Tunisia ambassador in the US entered an American polling station, he would be escorted to...Guantanamo.