Systems and associated methods are disclosed to reduce wait time experienced by customers during order fulfillment and pick-up. The system utilizes cameras and automatic license plate recognition (ALPR) to quickly identify vehicles associated with customer accounts and pending pick-up orders upon arrival. Proximity detectors provide an additional layer of vehicle detection. A concierge tool provides manual inputs from a user relating to vehicle or customer status. The system provides for synthesis and fusion of these diverse input types to accurately detect and identify arriving and departing customers.