I’d say keep your rabbit to a restricted space that’s flat. Keep monitoring appetite, poop, and energy. It’s pretty important to get an x-ray to understand the situation, as well as get a hold of pain medication. Is it possible for you to extend your search radius and perhaps be willing to go a bit further to find a vet? The other option, while not ideal, is going to a dog/cat vet who is willing to see a rabbit. Ideally, your rabbit doesn’t need to be put under in order to have an x-ray taken, and if they prescribe medication, it’d likely be meloxicam (oral) for pain and inflammation management. With the x-rays taken, you could perhaps then easier send these to a rabbit vet for consult and recommendations for at-home treatment in the meantime. If there is an infection of the bone, an antibiotic may be prescribed, like enrofloxacin.
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.