Do they? Does that make it alright then? Her husband was way over the limit, endangering lives getting behind the wheel. She was making some sort of strange veiled threat to the officer about the fact he will "soon know" who she is. She's an idiot and so is her husband.
^ This. The real story here is that she and her husband got behind the wheel knowing he was well and truly over the limit, putting their own and other people's lives at risk.
Her PR apology for her behaviour towards the arresting officer appears to be her trying to move the attention away from that.