"70 is the new 50," the Fox News regular wrote. "Erica and family are going to be so pissed...but at my age..."
Rivera's wife, Erica, somehow managed to tolerate her husband's public display.
"This is exactly the kind of thing that happens when I fall asleep first," she told E! News. "Thank god we have towels in the bathroom. But I'm proud my husband looks so hot!"
Rivera, who has since deleted the photo, seems to have learned a valuable lesson:
Note to self: no tweeting after 1am— Geraldo Rivera (@GeraldoRivera) July 21, 2013
2014: The Year in Music [PHOTOS]