I honestly don't know. It's possible that the media guy down there in Florida would have thought it would be newsworthy and alerted Hq to possible media interest, but he wouldn't call the media directly.
Or, there could have been someone else in secondary at the same time who overheard.
Or, pillow talk. CBP Officer gets off work and says to his girlfriend, hey, guess what happened at work today.
Or, a CBP Officer with a big mouth is looking to get his/her butt fired for alerting the media to a "scoop".
Or, if local law enforcement was called, they told the press.
I'll probably know tomorrow.