sabrina broadbent tetzner escaped the colorado city , arizona fundamentalist mormon sect headed by warren jeffs eight years ago .
last week , the 32-year-old mother gained full custody of her four children , ages 8 to 13 .
when she tried to pick up the kids from their aunt 's house , she was physically barred by hundreds of cult members .
sheriff 's deputies had to take out a search warrant to reunite the mother with her two daughters and two sons .