LaJoie, 22, was placed on indefinite probation and ordered to undergo sensitivity training for what NASCAR called an "insensitive and intolerable" communication."
In a message posted to his Twitter account on Oct. 15, LaJoie rhetorically asked whether it was stereotyping to ask TSA to cavity search a man with a turban.
George Silbermann, NASCAR's vice president of Regional and Touring Series, said the tweet had "no place in our sport."
"Each of NASCAR’s 2013 series-specific Rule Books includes our Code of Conduct that unequivocally states our stance specific to the use of demeaning language. We expect our entire industry to adhere to that Code," he said.
LaJoie has competed in NASCAR's K&N Pro Series East and the Automobile Racing Club of America series. LaJoie has a development driving contract with Richard Petty Motorsports.
In a statement, LaJoie said he made "an immature and insensitive comment."
