I currently hold a Carte de léegitimation as an American citizen working for the UN. I am wondering if I am allowed to stay in the Schengen countries for three months after my Carte expires as a tourist which is the typical alotted time for Americans to travel without a visa.
Do I have to exit Schengen and re-enter?
Do I have to return to the United States?
Any information would be helpful as the US embassy was not, and Swiss migration people not really.