PHOENIX (AP)—Former NBA star Charles Barkley began serving a three-day jail sentence Saturday for a drunken-driving charge.

Maricopa County Sheriff Joe Arpaio said Barkley already had been acting like a “model inmate,” even chatting with others at Tent City, where inmates are housed in tents rather than traditional jail cells.

Barkley has a private tent, but is close enough to other inmates to talk, Arpaio said.

Barkley, a TNT studio analyst, will spend all of Saturday in custody, but will be given work release from 8 a.m. to 8 p.m. Sunday. He will get work release at 8 a.m. Monday and will not have to return to the tents at 8 p.m.

That’s a total of 36 hours in jail.

Arpaio said Barkley is not being given special treatment and has a separate tent for his own safety. Meals will be brought to him.

“I didn’t have to put him in the tents. I could have put him in a cell all by himself—that would be special,” he said. “He’s just lucky it’s not the summer. It’s 130 degrees in the summer.”

Charles Barkley begins serving time on DUI charges