If the facilities from which, or the place where, the wire communications are to be intercepted are being used, or are about to be used, or are leased to, listed in the name of, or commonly used by, a licensed physician, an attorney-at-law or a practicing clergyman, no order shall be issued and no wire communications shall be intercepted over such facilities or in such places. No otherwise privileged wire communications intercepted in accordance with, or in violation of, the provisions of this chapter shall lose their privileged character, nor shall any evidence derived therefrom be used for any purpose.