Is it a good idea or bad idea, in a hot location, to park under a tree for shade?
Living in Arizona, for a few days I thought it was a good idea. Until I got tree sap, leaves, dust, and bird droppings over my car. The trees here are also pretty pathetic and some only offer a small portion of shade.
Now I park in an open area of my work's parking lot, but my car is burning hot when it's time to go home.