Could very well be a hoax.
Bob Lassiter - Wikipedia, the free encyclopedia
It seems Bob Lassiter like to get people so mad they would call and the he would toy with them.
"Lassiter's unique and provocative style have created a high demand for airchecks of his old shows, many of which are archived online . One of the most notorious of these, known as "Mr. Airstream," is a recording from WPLP on April 1, 1987. It is a phone conversation in which an irate elderly man in an Airstream trailer protests Lassiter's treatment of old people, as well as the President (who, at the time, was Ronald Reagan) and Jim and Tammy Faye Bakker; threatens to report him to the station management, the FCC, the Chamber of Commerce, and even the police; and ends the call by saying, "Have a bad night, hippie!"  Fans of the recording, as well as Lassiter himself, consider it to be the greatest moment in talk-radio history."