QR on the windshield. Text the driver. Number stays private.
Put a QR code on the car window. Someone who scans it can text the driver - the car is in the way, the lights are on, it needs to move - and the phone number is never shown. The driver gets the text. They can turn the code off. The printed QR stays on the glass until they replace it.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.