You cannot totally block the road, as it's considered deadly force, it creates "a fatal funnel". You can block half the road and spike strip the other half but you always need to Leave an option for the suspect. If you block the entire roadway you create a situation where an escalation is likely and leave yourself at the top of the " use of force pyrimid".

Once you block the entire roadway you have already decided you are going to use deadly force if the suspects do not comply. You have left the suspects with two choices, 1. Is to comply and stop. 2. Is to crash into the roadblock where officers have put themselves in harm's way, the only way for the officers to protect themselves at that point is to shoot at the vehicle. That is not SOP, it would only be justified if the suspects were considered so dangerous that allowing them to escape would put the pubic in iminent danger of loss of life.

These suspects were non violent, had not threatened anyone or harmed anyone. I don't think an escalation directly to deadly force was justified here. The arrest warrant nor did the suspects actions justify anything more than spike strips, not even less than lethal would have been justified. The suspects were passive resistive, and committed the crime of failure to yield, that's it..... There was nothing else, the warrant did not justify to start the escalation at a level above zero.

The reality is the FBI was not going to allow them to get into Grant County because they would have had no authority there.