Comfort and Convenience
How close a parcel sits after a post-office stop depends on whether someone wants easy reach or a free arm. One occupant keeps the package beside them; another leaves that seat clear.
Safety and Driver Assistance
A driver collecting bags from a market can, while still in the lot, rehearse the parking-brake and gear-selector actions so those motions are settled before joining traffic.
Multimedia and Connectivity
A courier may ring while someone is inside a dry cleaner; if calling features are available, the missed call can be returned from the parked car before the next stop.