http://www.museumofhoaxes.com/hoax/aprilfool/P90/
>>Carolyn Fox, a disc jockey for WHJY in Providence, Rhode Island, announced in 1986 that the 'Providence Labor Action Relations Board Committee' had decided to close the city for the day. She gave out a number for listeners to call for more information. The number was that of a rival station, WPRO-AM. Reportedly hundreds of people called WPRO, as well as City Hall and the police. Even more called into their offices to see if they had to go into work.
>>Carolyn Fox, a disc jockey for WHJY in Providence, Rhode Island, announced in 1986 that the 'Providence Labor Action Relations Board Committee' had decided to close the city for the day. She gave out a number for listeners to call for more information. The number was that of a rival station, WPRO-AM. Reportedly hundreds of people called WPRO, as well as City Hall and the police. Even more called into their offices to see if they had to go into work.