A lot of good ideas here 
I like the sprinkler. Put it close to the road. Then maybe cut the grass right after? Make sure the clippings get blown onto the truck.
If you do get a beater to park infront of their house, paint it pink.
Make the township install a fire hydrant (probably not financially feasible, but...)
Along those lines, install a handicapped only sign?
Install a bird feeder there... it may take a while, but the birds will come, and so will the poo.
Paint on the road "reserved for people who wish they were born with a penis" or something like that.

I like the sprinkler. Put it close to the road. Then maybe cut the grass right after? Make sure the clippings get blown onto the truck.
If you do get a beater to park infront of their house, paint it pink.
Make the township install a fire hydrant (probably not financially feasible, but...)
Along those lines, install a handicapped only sign?
Install a bird feeder there... it may take a while, but the birds will come, and so will the poo.
Paint on the road "reserved for people who wish they were born with a penis" or something like that.