If I was that CBP that got spit in the face, I’d take him into a dark room with a baton and a sock to stuff in his mouth.
I will be shocked if the illegal who on the agent is charged. We have been told in the past that if an alien hits an agent while we are trying to arrest them that it is not an assault. The reason according to the attorneys is that they were only trying to avoid arrest and did not intend to assault the agent. People would be suprised to realize that we can not charge aliens with resisting arrest.