Masaud Ali, 21, claimed he'd been a target of racism after he was refused service at the restaurant in St Paul, Minnesota, unless he paid first, with the manager telling him it was because 'you never have money when you come in here.'
'Can a group of young well established African American get a bite to eat after a long workout session. @ChipotleTweets??' he wrote in a tweet alongside a video of the confrontation, on Friday.
The post sparked a furious backlash against the manager and Chipotle, who fired the employee the following day.
But it appears the fast food chain may have been to quick to act after old tweets of Ali's emerged where he talks about 'dining and dashing' - the illegal practice of ordering food and running out before paying for it.