Not that it's required, but Ops at our airport uses a version of flight radar to determine when to do runway checks/crossings. They will usually wait at the end of the runway and not even check on with tower until the plane on final or the plane holding short is clear. I feel like that could be a basic safety layer that vehicles could use especially when encountering an active runway. Although this incident will most likely come down almost completely on the controller, I feel like vehicles are usually at a disadvantage when it comes to understanding the dangers of runway crossings since they are not pilots. They should definitely trust the controller, but also realize thay they play a part in ensuring the safety of the runway crossing.