The anti-gunners in Ohio are alive and well. They will happily call law enforcement with a hysterical "Man With A Gun" complaint.
Some cops are also anti-gun, not particularly familiar with nuances of the law, and will arrest somebody for OC for allegedly inciting panic, disturbing the peace, or some such loosey-goosey catch-all crime.
While the police officer may have acted illegally, you may still get the privilege of seeing the inside of a jail, meeting, hiring and paying a lawyer, observing first-hand the application of criminal procedure rules in a courtroom, and you still may risk getting a conviction.
IMHO, OC in Ohio (and many other places) is an extremely bad idea in any populated area. In the remote woods, where nobody will see your handgun, no problem.
Why would you voluntarily subject yourself to those risks?
Get a concealed carry permit, learn the laws, and carry your handgun legally and concealed.
While I am an attorney, I am NOT YOUR ATTORNEY.