My husband is a veterinarian and was laid off after 6 months but signed non compete- does this hold up? He now cant work anywher

My husband signed a non compete clause in a veterinary clinic in Sedona, Arizona where he was hired to work that stated he couldn't work for another clinic within a 15 mile radius of where they held a business permit (which includes the whole of Sedona- sneakily). He was laid off after 6 months as they claimed lack of funds to pay him his wage.....and this greatly disrupted our life as we had to pay moving costs back to NYC etc (which we had only just paid to come out there from NYC)....Does this non compete hold up given that he is a veterinarian? AND- sub question- he signed the contract before he had a license in Arizona.....however i think they amended the contract.