When Kris is on the radio, it appears late sunset in the hills, while at the school bus in the valley, it's only afternoon with bright sunshine.
As the station wagon pulls up to Aunt Lydia's house before the shoot-out, all the headlight lens and reflector glass is missing. After Bosley crashes through the wooden gate, quite a bit of the headlight glass has returned.
The clothes the Angels disguised themselves with did not belong to them but to small-town old ladies, yet they fit all three of them perfectly.
The station wagon Bosley and the Angels are driving in is shown with all the headlights missing before they arrive in Aunt Lydia's town. It's then shown with the headlights intact as they arrive in town and park on the street.
The Angels and Aunt Lydia drive past the kidnapped women and stop the car to sneak up on the group; but no one takes care to shut the car doors quietly, apparently not caring if the noise alerts the men guarding the women.