Glencoe is in Calhoun County which is probably one of the worst places in the US to OC. The sheriff there is convinced that OC is illegal. He seems to be on a power trip and refuses to acknowledge that OC is legal. He strikes me as an old-time sheriff who thinks he runs the county.
If you OC there, be prepared to be arrested. Follow the instructions of any deputy that you encounter. I have little doubt that you could easily run into a trigger-happy deputy who would misinterpret any move you make that he did not specifically tell you to make.
Keep your recorder running at all times so you don't have to move to start it. I would get one that looks like some other harmless piece of equipment that everyone might carry, as I have no faith in the SD not to violate your property rights to protect the power that they believe is theirs.
I don't mean to scare you, but we keep track of these things. If I were to grade sheriff's departments, Calhoun would earn a 0 on a scale of 100. The only personal Liberty that exists in that county are the Liberties that the sheriff decides that you have.
Good luck. You're gonna need it.