And presumably then they can pull into the side of the road. So about half the patients get a warning. And often it's sufficient where they can stop driving. Many patients though crash despite auras, and either the aura was unreliable, it varied whether they got one. Many patients though would try to drive home after they got the aura before they had the full seizure or they would be trapped in traffic, and a fair number of patients crashed despite auras.
Most patients disregard the law.
They don't report themselves. They drive anyway. Well, of the patients who crashed, only a third of them have reported themselves to authorities as having epilepsy which is required. Yet six States in the US require physicians to report their patients, we re against that. That mandatory reporting.