i open carry everywhere, my property or not. i live in PA, and we have few restrictions on where we can carry. as far as people slowing down in traffic, it doesn't happen often, but i wouldn't care if it did. all they'd do is piss off the people driving behind them. i've picked up my daughter from school while open carrying, as well. some people don't like it, but it's legal. having a PA LTCF exempts me from the "school zone" law, i just can't enter the building, or be standing on school property, like school buses or schoolyards.