I have to honestly say if I saw you with that rig dressed that way, and I was one of the anti-gun lemmings, it would be hard not to say something to someone, cops or otherwise.
Do you wear this thing regularly? Is this the only time you've had trouble? I realize it's perfectly legal but you may want to tone it down until the dust settles a bit on the whole gun climate.
Personally I don't see the allure of OC. If and when I do get my LTCH, it will be CC for me all the way. No need to announce to anybody you're carrying IMO. It does nothing more than draw attention to yourself and right now that's not such a good thing.