All officers and employees of municipalities are not personally liable for claims which are exempted under section 670.4 , except claims for punitive damages, and actions permitted under section 85.20 . An officer or employee of a municipality is not liable for punitive damages as a result of acts in the performance of a duty, unless actual malice or willful, wanton and reckless misconduct is proven. [ 82 Acts, ch 1018, §1 ] C83, §613A.12 83 Acts, ch 130, §2 ; 86 Acts, ch 1211, §35 C93, §670.12