This isn't some old T-55 from a couple generations ago that you could buy cheaply after the Soviet Union fell in 1991.* This is a T-90, which is Russia's top-shelf modern main battle tank.
Redditor /u/Mutantlight snapped this photo from a Peto's truck stop and casino in Roanoke, Louisiana. The Drive followed on the story and contacted the manager. She said that the truck hauling the trailer with the tank broke down and the driver asked if he could leave it at the stop while he went to Houston for another truck. The Drive learned that the tank had been captured in Ukraine last fall. Somehow, it has been brought to the United States.
-via Dave Barry
*There was some truly amazing Warsaw Pact milsurp available in the early 1990s.