Im wondering if she had stopped to let her wife out of the car? Her wife wasnt in the vehicle when she was shot, and it appears she was on the street, she also been quoted as saying she made Renee go there. Is it possible that she was pulling away from doing that?
I am certain somewhere in this thread I have seen it written that she had stopped when an ICE vehicle sped past, but call that my opinion as I dont have a link right now on hand.
It does seem that she tried to leave as soon as the agents told her to move, and she had waved them around, so I dont personally think she was attempting to block the road.