If your son's girlfriend was drunk, too, she would have done him more harm than good by showing up for him.

I speak from experience. Once, a boyfriend of mine and I got drunk together, and he got picked up for it and I didn't. Being drunk too, I took exception to this, and went to the station and mouthed off (which I wouldn't have done, sober) to the cops there, and, well, suffice it to say, that only made things worse, and I now know how to beat a person while leaving no marks.

So, while it might've been out of true callousness, or not - you decide, based upon what you know of her - your son's girlfriend, being drunk also, probably made the wisest decision by staying out of it once he'd been taken in.

I hope all of you are all right, now.