If I am to understand this right - are you navigating him from the phone? Why doesn't he have is own map and have plotted his own course before he left? I mean, I would be horribly frustrated if I was trying to find my way while someone navigated me over the phone. HOWEVER, the only person I can/should get frustrated with is myself! It is my responsibility to know where the heck I am going - and your H should take responsibility for this. Again, maybe I read this wrong.
... ACTUALLY YOU READ THIS RIGHT AND EXACTLY HOW I FELT.... He has the responsibility,, but he says I do not care about him if I can not help him and proceeded to verbally abuse me... HE DID HAVE A MAP HE HUST LIKES TO BLAME ME FOR EVERYTHING...I guess he is blind cause he is an ADULT and should know it is HIS resposibilty,, he has driven it many , countless times... UGH.
Quite simply put - you are a person and you have value. You can calmly tell your H that "I am on your side. I am trying to help you not hurt you right now. But I am not going to stay on the phone if you continue to yell at me or get frustrated with me. I am trying to help. I understand your frustration and would be frustrated too. But if we work together, perhaps we can figure this out."
I did this just minutes ago on the phone with him before I even read this,,, I am not as "dumb" as he thinks I am,, or pretends to think I am,, and know I do not think I am dumb,, I am very, very Intelligent BTW,,, But we already knew that I diffussed him and it felt good,, I hope when he comes home he is relaxed...
I diffussed him and it felt good,, I hope when he comes home he is relaxed... 
