There are veterinary behaviorists who might be able to help you. He might do better in his recovery with some anti anxiety meds to help him past the trauma and get back into a new routine at home and in the neighborhood.
Positive type training may help him once the anxiety is dropped.
Your vet may be able to refer you to a veterinary behaviorist. Or see if one listed here is near you
http://www.dacvb.org/about_us/services/
A really good positive trainer working with you and your vet helping with an anti anxiety med may also help.
The med is just to help her calm enough to learn she is OK going out with you etc.
You might also want to drive her in your car to a park away from home to go for a walk to see if that helps her.
Hope this helps you!
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