Detroit residents are demanding that a coney island restaurant "clean it up or stay shut down" following the restaurant's latest alleged health issue.

The Detroit Health Department said that Lafayette Coney Island in Downtown Detroit has closed once again to address a rat problem.

Hamm, who had stayed in a downtown Detroit hotel, raved about the city, which he called "very cool" and "super awesome." And he told Fallon, who was familiar with the dueling coney island shops, about eating at Lafayette.

The owner of American Coney Island in Detroit says the recent closure of Lafayette Coney Island due to rat infestation impacts their business.