A loyal reader pointed me to this article from FMQB:

“A closer examination of the footage shows the second would-be-heckler placing his middle finger up to the sign in effigy of O&A, then whispering something into Nathaniel’s ear. The person? Embattled WXRK/New York deejay Crazy Cabbie who happened upon the scene by chance and decided to show his disdain for the XM personalities.”

Upon closer examination of the video? You bet, it does look like Cabbie to me.

Crazy Cabbie is a frequent guest on The Howard Stern Show, and has had issues with O&A in the past. Cabbie apparently is using his time wisely before he goes off to jail for a 1-year prison sentence for tax evasion.