One of my mates tried to get back into my flat after a night out, failed (after waking the entire stair, but not residents of my flat!) Cops arrived after neighbour across the stair phoned them. They asked John what was up, he told them (pissed), they suggested he just sleep in the car. He objected, suggesting they'd just nick him, but basically he got told just to get in the car and stay out the way.
No reason to doubt the story is substantially true, but if they knew a bit more history about him then I suspect they wouldn't have been so trusting as to his judgement ::)