People tend to unfairly criticize the DMV road test and our Examiners, too. But they forget our Examiners and their families have to share the road with the very people they pass. I don't know of a better incentive for doing the best job we can. File a request for DMV to retest the driver. Law enforcement departments have a priority system for responding to events, calls and complaints.
Highest priority is given to situations involving serious risk to life and damage to property.
An officer will arrive with lights flashing. If your situation is one where the older driver is at immediate risk of crashing or doing harm to others, let the desk officer or dispatcher know that when you call and give all pertinent specifics. Often this is the officer who works most closely with the community on a variety of social services issues. He or she will try to help you. We do a lot of things to prevent crashes.