You asked him not to park there so he left a note telling you that he couldn't see another convenient spot
It's pathetic, isn't it? Imagine if somebody went into his house when he'd nipped out to the garden and started helping themselves to the contents of his fridge - and then, when challenged, started wailing "But I couldn't find the Tesco Extra that's 50 yards down the road!"
He'll keep doing this until the time he wants to turn up happens to be when you are around. Then he's won.
That probably is how his mind works - but he must be SpongeBob NoBrain if he doesn't realise that he's the one who's constantly having to think about it, waste his own time and then make the effort to keep coming over in the vain hope, and then considers it a win when he eventually does strike lucky.
I'll bet that if the engine of his precious Ranger only started up every 10th time he tried - even when he has parked it somewhere legal and sensible - he wouldn't consider it to be a 'winner's' car.