Talked via E-mail to someone who had been at Put-In Bay at that time. They did not get sick, but indicated they did not eat any food there - they only drank (and had fun). They are a young married couple who celebrated her birthday on that trip.
I was told basically the same thing. Those symptoms are similar to what one gets when on edrinls wayyyyy too much. And that is a regular occurence at Put-in-Bay.