First off, I'm sorry to hear about your family member.
Am I right in saying that the funeral isn't for a week? That seems like a rather long time, but maybe things are handled differently where you live, than I.
I was a floral designer for many years. What we would do was to make up the flowers towards the end of the day on Saturday, and deliver them to the funeral home for the viewing, on Sunday. We would then request the funeral home to transfer them the next day, or if they wouldn't do that, we would ask that they kept the flowers watered and in a cool place, and we would pick them up before the Church service, and set them up, and try and replace any flowers that may have wilted.
You will likely be charged two delivery charges, but the flowers will be in both places. You can also make a personal request to the funeral home to have the flowers transferred to the cemetary if you'd like.
I hope that helped. :)