I've met a fair amount. There's actually a small local scene where I am from, very few newcomers, very few caregivers that aren't already in a committed relationship with an AB, but a decent amount of like minded people of both the AB and DL persuasion. I met most of my AB friends and acquaintances through munches and get togethers organized by my local AB community. I also attended munches back when I was in Toronto, those were fun. It also helps that some people from my University, who I am still pretty chummy with, started exploring AB/DL as well. So, I've met quite a few in person and I've even hung out with a few.
It's always a little nerve racking the first time around because you are never quite sure how other AB's are gonna act. Some AB's and DL's go all out, some are much more chill, some will be into it as a lifestyle, others will view it as strictly a kinky thing, you'll usually get a wide mix when you attend a munch. Finding an in as the new guy is always difficult as well, especially if the community is extremely close knit. I remember my first few local munches, they were pretty clique (they still are), there wasn't really a lot of people who were newbie friendly, you had find your own way in on the conversation, which was fine for me, but that can be difficult for some. I've found that munches in larger cities are much more accommodating. Usually when you go to a munch in a larger city, you're not the only newcomer, so you hit it off with other new people and there's usually at least a couple of more experienced AB's who offer to show you around and introduce you to their friends and such. So meeting another AB, it's a bit uncertain and nerve racking, but ultimately worth it, it's nice finding out that there's others like you. It should go without saying, but I've also made some wonderful AB/DL and Little friends through ADISC
I'm sorry it doesn't seem like there are any meet-ups in your area. If you're just searching online you might not find any. I found out about all my munches and I'm notified of upcoming ones through Fetlife, it's probably the only good reason to have an account on there. I seldom frequent my Fetlife account, but I still keep it open and sign in every month to hear about possible munches and get togethers.
Also, I know there are quite a few members on ADISC who are based in Ohio, so I wouldn't be surprised if there are munches/meet ups in that State. Have you considered looking up munches/meet-ups in other cities? Columbus and Cleveland seem as though they'd likely have a munch, my city is much smaller than either of those and it still hosts AB/DL get togethers and has a tiny AB/DL community. Of course, you'd likely have to commute in order to attend a meet and greet in another city.