Nice job man!! I would be interested in showing up if he/you thinks it would be helpful.
Here are some factoids to toss at him.
While it is hard to be certain it appears that around 30 States already allow ear plugs. California started allowing them in 2004 and we can find no reports of issues because of this change.
Noise levels at only 35 mph are in the range of 110 to 130 dB. Every doctor and hearing expert in the world will say over 85DB is bad news and will result in permanent hearing loss.
This is NOT a loud bike issue, this is about the wind noise that is reaching these dB levels.
Federal Law REQUIRES hearing protection over 85dB in the workplace, it is immoral for Ohio to require us by law to be exposed to levels far in excess of that.
Some articles that contain testimonials from doctors and so on.
http://www.ideastream.org/news/earplugs-helpful-but-illegal-for-ohio-motorcyclists
http://legalmatch.typepad.com/businesslaw/2015/09/motorcyclists-object-to-state-laws-forbidding-use-of-earplugs.html