Grrrr...come home now!

So, typically I'm supportive of what my dad decides to do. Cancer is killing him and I'd really like him to know and feel like he's in control of his life, not the cancer. Well, when he and mom and dad left in their motor home for So Cal to take care of some family business down there, I did not have a good feeling about them going down there. My dad is considerably thinner and while I haven't seen it, mom and Suzanne have talked about the growing lump on his chest. It took dad a couple days longer than normal to get down to CA (I'm glad he took his time) and it seems that mom has been saying that dad has been struggling to breathe since he's been down there. We attributed some of his breathing difficulty to the dust and "stuff" around grandma's house (which they are trying to clean up...Grandma died the first part of March). Today, mom took dad to the hospital...dad has pneumonia and some other "minor" complications. He's staying the night in the hospital for observation (the hospital ran tests and there was one indicator that affected something cardiac. I'm not a medical person so a lot of the specifics go over the top of my head. Suzanne will have to clear up the specifics later on). I, personally, think it's fluid related to the cancer. I'm frustrated right now because if anything goes wrong, dad is even further away than the distance it takes me to drive from Newport to Beaverton. In a way, out of reach. I know that he feels like he's got things to take care of down in CA, but he's got a granddaughter up here. I want him coming home NOW. How do I convince him to let go of the stuff in CA and come home to be with his Sachiko? I'm frustrated and scared.