I have a BRB that I produced that has a neck kink in almost the same spot. He can eat just fine though his coil while he "kills" the f/t feeder is odd. He gets 2-3 small feeders instead of one typical-size feeder. He also does not have any neurological problems. The spider wobble is odd - sometimes snakes with improve over time, otherwise they get worse.
If the snake can and wants to eat on its own I would give it a chance.