Not able to attend the Phoenix DO, but saw this today for parking at the airport. Not following the threads closely since I am not going but thought I would pass it along. I realize there would be more parking if it were the departing airport, but if anyone is picking someone up or has any need for it, here it is:
https://sync.americanexpress.com/twitter/offerterms/FCAFD7DD3839A4FBF939D68DBD203FFAC
https://sync.americanexpress.com/twitter/offerterms/FCAFD7DD3839A4FBF939D68DBD203FFAC