Navarone Garibaldi got in trouble at age 17 last year when he was stopped for speeding in Glendale, Calif., and was found in possession of hallucinogenic mushrooms.
Garibaldi is now reportedly back on track, however, after completing the "student volunteer minister course" at his mother's controversial church in Los Angeles, the New York Post reported Sunday.
Pricilla Presley, 60, has been a Scientologist for decades.
NBC reportedly holds celebs hostage to Jimmy Fallon's show
Aaron Carter is still in love with Hilary Duff