[guttermaw]

I agree. The technique described differs from anything OP linked. The fact that thieves are smashing windows to get at diagnostic ports suggests that this method of entering the vehicle is fairly novel.

Exploits have been demonstrated by researchers, but are mostly pretty make/model specific.

Certainly, I'd bet that every car with bluetooth/wifi integrated has some sort of flaw whereby it might be possible to use that to bridge to the cars Canbus and request a door unlock. That doesn't mean that these are easily exploitable by individuals willing to commit petty theft.