I think the 'funeral' is probably over by now. It would just have involved transporting the body to the back door of the crematorium and feeding it directly into the furnace with no ceremony at all. The ashes will just have gone out with the rubbish into landfill .
I wouldn't even deign to let my excreta sit on such ashes. Best place for his disposal would be a high-temp and residence environmental plant and bury anything left over, along with other heavy metals and pollutants in the concrete that goes for kerbsides and Motorway dividers.