If he continues to be aggressive , a restraining order might be needed..
If he gets locked up, he might be more inclined to get help that way..court ordered..

I would not give him anything that enables him to continue this downward path.

Is he driving in that condition also?

Yes, withdraw until there is some lasting positive changes shown.

Could he be bi polar or depressed or in pain?
He might be self medicating with the booze. A physical & mental work up might be a good thing if you think one or both might apply.
He may or may not want to do that though.

Our sister site may have more in depth info -
http://psychcentral.com/disorders/addictions/