Hi, just from our frightening experience I suggest you push for your husband to surrender his license voluntarily.
It took us nearly getting into a bad accident and a loud fight with tears (just on my end; my husband shows little emotion anymore), before I convinced my husband, really demanded, that it was time to stop driving. I told him his brain is not giving him correct info anymore, and it is unsafe for him to drive. It was an awful and dangerous experience that I wish on no one.
Also remember you'd be liable if he hurts or kills someone because you have knowledge of his issues.
Protect yourselves and those around you. 🫂