You know, distractions will always be there while we drive. It doesn't matter if we are deaf or hearing. We all get distracted by using cellphones, sidekicks, signing/speaking, drinking a cup, looking at signs that are on display, attractions, so and on.
As each state varies with their driving law, some are required to have such restrictions but I have not seen or heard of a case where they (the police) pulls you over just because you're deaf. I've been pulled over couple of times myself (Yeah, I'm a leadfoot

) and not once, the cops has not gave me a ticket due to my deafness.
If we were to be ticketed just because we're deaf - There will be a lot of backpedaling. We have gone a long way to fight for our rights to drive.