Sitting in the car in a sunny parking lot is not a comfortable place to be. One doesn’t want to run the polluting engine in order to get the benefit of the air conditioning. Unless it happens to be a breezy day, putting the windows down may not give much relief from hot weather.
What I’d like to see and experience is more tree-planting in and around parking lots. Trees would cool the air and provide actual shade for people who have to wait in their cars in parking lots. Our ongoing COVID-19 avoidance of stores and offices may last a long time. I would appreciate more tree-planting to cool and beautify our local environments.