Westbound traffic lanes were closed after the accident. There were no immediate reports of injuries.
Police said a jogger stumbled upon the missing trailer containing four decades local of Cub Scout history on Sunday morning.
After angering a number of residents in SoHo the city took action and ordered megastar Will Smith to move his trailer to a private lot on Wednesday.
A Massachussetts man died Monday afternoon after stopping on the Tappan Zee Bridge to check on a trailer he was hauling.