Several of the photos Zappone took that day showing the last time Secret Service agents were posted at the rear of the presidential limousine were entered as exhibits during The Warren Commission's investigation into the Kennedy Assassination and are still used today in Secret Service training. According to Secret Service records, Kennedy's Tampa visit was also remarkable in that he was exposed to the public for the second longest period of time of any appearance during his entire Presidency, the longest being his visit to West Berlin, Germany on June 26, 1963.