Yeah...still waiting for the usual suspects (aka as hrdware ...okie bryan etc..) to chime in and tell us how it should be.
I can't speak for okiebryan, but as far as SB goes I agree with most that some gun rights groups put them in this position. They were a neutral company that just wanted to sell coffee. Some people took the neutral stance and twisted it into a pro-gun stance which Starbucks didn't want to take. I would be willing to bet that most of the "neutral" businesses (wal-mart, target, home depot, lowes, etc, etc) don't want weapons in their stores either, but they are taking the neutral stance to try and make everyone happy and blame it on the state legislatures. Even SB said they don't want them in the stores but they aren't going to ban them.
For the record, I'm not a starbucks fan...can't stand most coffees. I have been there a couple of times to get hot chocolate, but not for any kind of organized event.
To my knowledge, every time OKOCA has a lunch or dinner, the restaurant is called before the event is announced and they are asked about hosting an open carry event. That's not to say the business is pro gun or anti gun, just that they allow carry.
As far as the city park goes, that's a bit different as it is public property not private property. Did I come to the park in your neighborhood prior to open carry....probably not, but then again I probably didn't know the person in your neighborhood who set up the event. I wouldn't plan an event in a park 3 counties over from where I live, but if someone I knew planned an event there, I may attend.