This is an excellent point. There must also be some right and/or control for the owner generating this data, so that they can access it independently, at least

This is an excellent point. There must also be some right and/or control for the owner generating this data, so that they can access it independently, at least in some raw form. I wonder if this qualifies under GDPR like law. If my cookie is private data, why can't the movement of my truck be?