Maybe the county?
I'd call the county, but only after I rang my neighbor's doorbell and asked if they were all right and if they needed some help with their lawn. :o) It may be that they're kind of house poor and haven't had a chance to mow. Perhaps they're having some family issues that have taken precedence. But, of course, it could be that they're really lazy. LOL! I'd ask them if they needed my assistance first (one time and only one time... they'd get the picture) and then if they said no and the trashy, jungle lawn persisted, I'd have to call the county. Good luck and I hope the jungle is tamed!
By Tucked Away