DoT guidance states that markings don't have to be pristine to be enforceable. They'd have to be a lot further gone before you could argue you can't see them.
Leaves would be mitigation if the leaf cover was so thick you can't see the hatchings. The fact there are leaves on the edges and bins there doesn't mean they can't enforce the hatchings. If the hatchings are enforceable they are enforceable if you are substantially on them, and they are clear enough for most of the area beneath and around your car.
RingGo has horrible capitalisation on the T&Cs, but I don't think that affects anything.
