Sunday 2pm to 2:30pm Flash mob:
There should be plenty of free parking along the street. Quietly Repose in or near your vehicle until the appointed time, then Quickly Run (or walk) to GZ and greet other attendees. Bring GPS* and/or magnifying glasses, and pretend to look for lost keys for a few minutes. After about 30 minutes we'll all Quietly Retreat and depart as suddenly as we arrived.
*There will be a Quick Rally for a prize and bragging rights, and a GPS device will be needed.