Kerry,
I hope I'm wrong, but somehow I think the funeral home will be reluctant to give you any info about time, place, and location. Maybe you can just ask the funeral home if you can send flowers directly to them and they can transport them to wherever for you. (You can offer to pay for the service.) This way, they wouldn't have to divulge any information to you. Even if your flowers were to arrive a day early, floral arrangements typically last for more than a day.
But maybe with your job and all, they will know you are credible and not some reporter hungry for news and give you the information you need.
Good luck, Kerry.