I actually think this work already (for me at least). Occasionally I let the car park and summon in a thight spot, where I know people don't leave before me (cuz nobody could enter, neither me nor the owner of the neighbouring car).
Why do this? Presumably as you exit a parking space you are already intending to drive somewhere and not still preparing to drive somewhere such that you would be inconveniencing other drivers already on their intended route. Also, it could be dangerous for you to get into your vehicle in a travel lane.