If the dog is owned by your husband's employer (I'm assuming the mechanic shop), then the injury is covered workers compensation and you would have no recourse for further recovery.
If the dog is owned by the property owner, then the owner is strictly/automatically liable for injuries caused by the dog, and your husband would have damages for pain and suffering, medical costs (whether or not covered by a health care plan), lost wages, and for loss of enjoyment of life (hedonistic damages). See Civil Code 3342; Delfino v. Sloan, 25 Cal. Rptr. 2d 265 (Cal. App. 1st Dist. 1993)
Hope this helps.
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