Do they have friends they can stay with while you're at work? I certainly hope so. I understand your frustration in dealing with the police.
I've had numerous interactions with the county sheriff's department here and AH is still out on the streets driving drunk. The last time he hit a judge's car, flunked the field sobriety test, and got tossed in jail for 24 hours.
The sheriff's department did not follow through and press charges. That pretty much sums up how "well" our law enforcement officials operate here. And it's a shame, and it's a joke, and don't get me started on that rant!
I'm sending prayers your way that you find a safe haven for your children. Take care of yourself too. I hope you don't have to deal with this sick man again.