Many law enforcement agencies have use-of-force policies that state that officers should protect themselves from moving vehicles by getting out of the way, if possible, not by shooting.
ICE has no such policy.
A police ethicist looks at the best practices on dealing with the situation:
https://theconversation.com/ice-killing-of-driver-in-minneapolis-involved-tactics-many-police-departments-warn-against-but-not-ice-itself-271907