Let's face it here. The real determining factor is the cop who finds you. Some will exercise their discretion and let things go recognizing someone made a conscious decision to NOT drive drunk. Others will load up every charge they can find regardless just for their own amusement. Not all cops are d*ckheads but there are some that will ruin a person's life because they didn't get laid before going on shift that night.
Sure some cops are d*ckheads. Just like some bank managers are d*ckheads, some teachers are d*ckheads, some doctors are d*ckheads, etc, etc. Set that aside for now.
What is not known is whether some drunk was intending to drive home and simply fell asleep/passed out before they got the chance to or whether it was just a situation as described where they were attempting to keep warm while waiting for a ride. Remember that those under the influence are not known for their stellar thinking capabilities. So police officer comes along and maybe his instincts/opinion tell him "this guy seems ok, I believe that he was only keeping warm until his ride got here, I'm going to give him a pass this time". This is what you're saying.
What if he was wrong? No charges, no record has been established. It happens again and again, still no record has been established as to this individual being behind the wheel in an intoxicated state. So buddy gets drunk yet again and does the same thing, only this time he doesn't pass out before he has the chance to drive away. Now he's a potential menace. Maybe he causes lots of damage, some injuries, possibly even a death. But it is a
first offense because the police gave the guy a pass and
assumed that he made a conscious decision not to drive drunk. Nope I'd rather see a record established on an idividual to show repeat behaviour of this nature. Now if we (meaning the court system) did more about these established patterns of behaviour I'd be much happier. As it is we do SFA about drunk drivers in this country, there is absolutely no excuse for anyone to get behind the wheel of a car in an intoxicated state. As far as I'm concerned they should have their license yanked immediately upon conviction for any offence of driving under the influence. Make the penalty
real, then maybe more people would get the hint.
So I disagree completely that the police officer in this scenario is being a d*ckhead, he's doing his job. I would expect all of them to do this without exception.