Returning to the actual topic, in Ohio open carry is legal in non-prohibited places, PERIOD. It's not "inducing panic", PERIOD. In fact, open carry alone doesn't even meet the elements of the offense, PERIOD. And Ohio has preemption. The ONLY gun laws in Ohio are state and federal ones, PERIOD.
The police don't need to know every law.
They need to know every law they're enforcing RIGHT NOW.
If you wrongfully deprive me of my liberty because you don't know the law or don't care what it says, I'm going to exact a price from you for that lack of respect for your profession.