I am a native of North Carolina and raised in a Methodist church and I have never understood this very odd custom. How could it provide consolation to someone whom I don't know and who does not know me? I know people feel strongly about this custom but I just don't get it. To me, it seems to be a demand that anyone within vision feel sorry for them. Ugh. I mean, I wouldn't whip in and out of their procession but neither do I feel compelled to stop and pull over, good grief. And unless I am mistaken this is not required by law, just a very odd custom.
When I go I also want to be cremated (my rant on the undertakers is for another time) and please scatter my ashes, thanks.