Prison correspondence can be so slow.
This was my first attempt at organizing a flashmob, so clearly there's a learning curve. Making sure you mention the correct time for everyone to be there is something to remember. Also, sending the alert out to more than just your immediate family in New York is a good tip. Especially if the flashmob is held in Chicago.
Overall, things could have gone worse.
Note: The security officer at The Bean was following me for the entire time we filmed.