Cemeteries shouldn't be parking lots either.
That said, when in Santiago we visited South America's largest cemetery - over 2 million dead. And it actually is a city of the dead with (allowed) vendors selling flowers, water and snacks and roads (traffic allowed at low speed) throughout the huge cemetery. Funnily, enough, there was nothing disrespectful or callous about it at all, life goes on, even among the dead. Whose graves were still decorated from Christmas. Us northern Europeans are always so uptight about death.