Charles,

So, if there was a complainant, you don't know what problems to address
to satisfy him. You seem eager to believe that there is no complainant but
in the absence of a complainant the ticket writer is the complainant. You
need to figure out what is causing these complaints.
I don't understand the point your pictures are intended to make. They
show a poorly maintained side walk/right of way and a retaining wall that is
leaning into the right of way. The vegetation above the retaining wall is
not encroaching into the right of way but still this is not a picture you
want to produce in court. This picture speaks of long term neglect.
Since you've now received multiple tickets you should try to do what is
necessary to prevent a city work crew from trimming your land at your
expense. Perhaps you should get a landscaper in if you don't know what to
do.

Dave M.