if the sign said no blacks with guns, no women with guns, no one arm white guys with guns allowed but regular white guys with guns are then you would have a problem. It's legal to smoke in your car and outside (most places) but you can not walk in a bar (or anywhere else in Ohio) and smoke. You can walk in a bar in Ohio while carrying concealed if you do not consume alcohol. again if you don't make a production out of it how would he know you were carrying?