It is Bob that signed off from "The Bob & Tom Show". Bob Kevoian announced his retirement in 2015 at the Museum of Broadcast Communications here in Chicago. Kevoian and his partner Tom Griswold were inducted into the National Radio Hall of Fame.

https://en.wikipedia.org/wiki/The_Bob_%26_Tom_Show#:~:text=During%20his%20induction%20speech%2C%20Bob,traveling%20with%20his%20wife%2C%20Becky.