Marcelo Gomes da Silva, 18, who came to the U.S. from Brazil at age 7, was detained by U.S. Immigration and Customs Enforcement agents Saturday. Authorities have said the agents were looking for the Milford High School teenager’s father, who owns the car Gomes da Silva was driving at the time and had parked in a friend’s driveway.

Speaking with members of the media outside the detention center shortly after his release on $2,000 bond, Gomes da Silva described “humiliating” conditions and said his faith helped him through his six days of detention.

On his wrist, he wore a bracelet made from the thin sheet of metallic blanket he was given to sleep on the cement floor.