如果我是警方律师，我会强调前车有警笛，后车有警灯，遵照谦让守则，不应该有插入中间的行为

这是司机手册中对后面紧急车谦让的方式：You must yield the right-of-way to the emergency vehicle. Pull over to the right (all the way to the curb if practical) and stop parallel to the curb. Before pulling back into traffic, be particularly alert for additional emergency vehicles