I would let the court enforce the removal. Sure judge bring your d-9 over when you are ready.
The court will simply charge you $500 or so every day that you defy the court order, garnished directly from your wages or taken out of your bank account. These fines aren't dischargeable in bankruptcy.
It's my understanding a detached garage is verboten. These people knew that and decided they surely could build a "proper" detached garage. They lost.