Possible old UL

Anybody remember something like this :

It’s a story, which takes place some time ago - possibly in the 60s, or 70s (but definitely long before widespread email use). Two guys decide to see how long a rumour takes to get from the east coast of the US, to the West coast. They spread it around NYC, then hop over to the west coast to wait for it to a rrive. One of them is sitting in a cafe/restaurant in Los Angeles/San Francisco when he overhears the rumour.

Anyone familiar with this story, and if so, do they know the full story, or a source?