Looking at Google Maps, there are a couple of places that you could build a two story parking garage along the stretch from St. Louis to Quaker, but I can see the problem being the light pollution from a two story garage with the nearby residences.
Good shielding (eliminating the direct line-of-sight to the light source) is good practice, but that becomes harder to do when the source is greatly elevated.
Color makes a big difference because our eyes are much more sensitive to blue and green at night.
If you think PSO's bad choice of LED color is more "penetrating" than the amber hues we had before, its not your imagination.
Fortunately, amber and warm-white LEDs are just as energy efficient now as the blue-rich ones were 20 years ago when the DOE wrote the specs that PSO uses today. Maybe some thoughtful architects and planners can help the private sector set the curve.