I just realized that I misunderstood your question. On the off chance that you still care and you'll read this, I'll fix that. When I said "fully-packed car",

I just realized that I misunderstood your question. On the off chance that you still care and you'll read this, I'll fix that. When I said "fully-packed car", the implication was that the car would arrive and use up a parking lot space. The parking lot space has to be provided in order for the car to use it up. If the space is being used in order to provide a space for a car to park in it, then the same space cannot be used for something else.