Thanks for your kind words, everyone.
He has been released now. He basically pulled up, downed a while bottle of whiskey then fell asleep in the car. Someone saw him and called emergency services, thinking he might need medical help.
He's been charged with drunk while in charge of a vehicle as he was still in the drivers seat with the keys in the ignition.
He seems to have been very upfront with both me and the police, admits and accepts what an idiot he has been, and a court date had been set.
It's his first offence, but he blew about a 153 so there is a good chance he's looking at jail time.
He says that he is ready for rehab, whether he just gets a driving ban or a custodial sentence, that this is an eye opener and he's ready to make a change.
I told him words are meaningless and I need to see him make the changes he's promising.