But where's the fun in that?
Besides, a system that could land one of those things safely would likely make the "car" unaffordable and would require major upgrades to infrastructure to accomodate them.
It’s true landing might require some manual control at first, since parking spaces are only marked by a line of paint. But as flying cars become more popular, the free market would take care of this too, maybe by giving each one its own transponder frequency. Who knows. It will probably be like the advent of the personal computer—you buy one and in six months it’s obsolete because they’re still evolving to meet society’s needs.