Perhaps a little white lie? Phone council and say your elderly friend is in hospital and unable to contact them, but that’s the car is completely legal?
Yes, thats a possibility.
The only person who answered today was a lady in her 50`s, she knew the car as her Mum had a Herald. When I explained the situation she seemed quite upset by it & was very sympathetic of my `quest` to locate the owner before its taken.
I may knock on her door tomorrow/day after with an empty bucket in hand in the hope she donates some water to the cause.
I`m also going to take a broom & a bin bag to remove the leaves from around it & make it look less dumped.