I place part of the blame for this incident on officials who have chosen to allow deaf people to drive and then done nothing to help law enforcement (or other drivers, for that matter) easily identify deaf drivers as such. Deaf drivers should be issued special "deaf" license plates. They're probably eligible for handicapped plates, but when a cop sees a "handicapped" plate he's far more likely to think "amputee" or "paraplegic" than "deaf".