I haven’t got any obvious answers I’m afraid. I live in a very fractured inner city community where I’m one of the very few people to even put out recycling boxes and what with language barriers etc I don’t think I’d even feel too confident trying to leaflet drop, so you’ve done better than me!
I have established an exit/entrance between our garden and the park though and have put up a hedgehog highway sign. The garden is something of an oasis for the city wildlife you’d expect and until about four years ago we had a couple of hogs. Very sadly the garden runs up to a normally quiet parking area and one hog died there and I have never discovered what happened to the other 🙁
I do wish you the very best of luck! I hope you hear back from a neighbour. I’m assuming they had an e-mail address on them or a number for people to contact.
Well done for what you’ve done,