Nothing in this chapter shall be construed to authorize the regulation or licensing of cemeteries or cemetery chapels by the board, except the regulation or licensing of any funeral establishment operated by a cemetery. In addition, nothing in this chapter shall be construed to prevent or interfere with the ceremonies, customs, religious rites or religion of any people, denomination, or sect, or to prevent or interfere with any religious denomination, sect or anybody composed of persons of a denomination, or to prevent or interfere with any church or synagogue from having its committee or committees prepare human bodies for burial or the families, friends or neighbors of deceased persons who prepare and bury their dead without charge.