Ethan Couch's mom returned to the U.S. while her son stays in Mexico.
The mother of the notorious “Affluenza” teen was arrested Thursday and held without bail on a felony charge after she was extradited back to the United States, according to reports.
Tonya Couch, 38, was charged with hindering apprehension of a felon, a felony, ABC News reported.
She arrived Los Angeles International Airport early Thursday, walking through the airport in cuffs as she was flanked by U.S. Marshals.
She was held at the Metropolitan Detention Center while she waited for officials to transport her back to Fort Worth, Texas.
Couch ignored reporters’ questions as she was rushed through the airport.
If convicted, she faces up to ten years in jail for helping her son, Ethan, evade authorities.
Her 18-year-old son remains in Mexico, after allegedly fleeing Texas for an alleged probation violation in a drunken-driving case.
He wore a black cap and coat as he was flown to Mexico City after winning a temporary delay of extradition back to Texas.
A Mexican judge is expected to rule next month if and when Ethan will be sent back to the United States.
Tonya's lawyer, Stephanie Patterson, spoke out for the first time to WFAA8 in Texas.
She said: “Put yourself in Tonya’s shoes. What would you do if you were a parent with a son who is the most hated boy in America. What would you do to protect him?”
Read: 'Affluenza' Teen Ethan Couch, Mother Found and Detained in Mexico
The mother and son first stayed in a swanky resort in Mexico for three days, bringing their dog along for the ride.
A housekeeper at the hotel claimed to discover a pistol left behind in a drawer.
INSIDE EDITION has learned that Ethan Couch allegedly spent most of his time in the hotel room.
One night he reportedly went to a local gentleman's club, but he didn't have enough money to pay his bar tab.
He was brought back to the hotel where his mother was allegedly awakened to pay his bill.
The pair then moved into a second-floor apartment in a shabby flop house.
Watch Below: 'Affluenza' Teen Missing from Probation After Being Seen Playing Beer Pong
