Gushing over the sweet couple, a confidante revealed:
He turned himself in!! Good boy!
Even though the photog got his phone back and Russell offered to pay for the window, it wasn't good enough for the cops and prosecutors.
They issued a warrant for his arrest, which prompted the actor to walk into the New Orleans police office about an hour ago and surrender.
Word is he's still in custody, but we'll keep you updated with any details as they come in!!
[Image via WENN.]