I left the poll open until tomorrow, but the results seem to be a landslide. I'm going to go ahead and prognosticate a winner: Thursday, June 9.
June 9: 9 votes (90%)
June 23: 1 vote (10%)
I would say let's keep things simple. Sea Salt, somewhere in the neighborhood of 5pm?
The beauty of this date is that it happens to be Minneapolis Bike to Work Day. So ride your bike, attend a bike to work celebration in the morning and then another in the evening. The weather forecast is even looking promising. Cooler and partly sunny. Perfect for enjoying a cool beverage on the patio.
Really, you haven't got a good enough excuse to avoid this. If you've never met any of the locals before, just look for the group with questionable fashion/grooming habits and bike helmets on the table.