Congressman Matt Gaetz apparently made the rounds before he self-quarantined ... because we got this pic of him chowing down Friday at a West Palm Beach taco joint. Gaetz hit up Rocco's Tacos and according to eyewitnesses, he was having a great time ... problem is, he had been exposed to someone diagnosed with coronavirus. Gaetz had been at a Conservative Political Action Conference in Maryland late last month and came in contact with someone who has been diagnosed with the virus.