J.S.
This is so all over the place. First you can't kick him out, he owns the house too. Your keeping track of him driving drunk will do nothing. I could write a journal of when you run naked through the subdivision, does that mean you actually do run through the subdivision naked? Wives divorcing lie, judges see anything without solid proof as a lie.
So pretty much you have nothing except a desire to divorce.
Talk to your friend who is a lawyer they will know the laws in your state. They will know what judges take as real proof. Then gather that proof. You still won't get full custody, they just don't give full custody anymore unless the parties agree to it or you have proof of severe harm to the children. Drunk won't cut it.
I am telling you this because once you lay your cards on the table he gets to react. The cards you have are losers, don't lay them down or you will have an ugly battle. Play this smart, talk to a lawyer.
Although B's suggestion would get it on record he drove drunk it will also cost you a mess of money you don't seem to have and damage his earnings taking away more money. Like I said, talk to a lawyer.