Scammers calling themselves "California Fraternal Order of Police".
They also call from these numbers:
(415) 363-9562
(415) 521-3147
(415) 528-6164
(760) 530-6889
(760) 890-9093
Back Tracer is right! I have gotten calls from three of the five numbers he lists. These pricks keep on changing numbers. Well, here's another to block.