Following his 133rd aerial victory and his last, Wiese was awarded the Knight's Cross of the Iron Cross with Oak Leaves () on 2 March 1944, the 418th officer or soldier of the Wehrmacht so honored. Wiese and fellow JG 52 pilots Erich Hartmann, Walter Krupinski, for the Oak Leaves presentation, and Gerhard Barkhorn, for the Swords to his Knight's Cross presentation, travelled on an overnight train from the Anhalter Bahnhof in Berlin to the "Führerhauptquartier" (Führer Headquarter) at the "Berghof" in Berchtesgaden for the award ceremony by Adolf Hitler on 4 April 1944. Also present at the award ceremony were Kurt Bühligen, Horst Ademeit, Reinhard Seiler, Hans-Joachim Jabs, Dr. Maximilian Otte, Bernhard Jope and Hansgeorg Bätcher from the bomber force, and the Flak officer Fritz Petersen, all destined to receive the Oak Leaves. On the train, all of them got drunk on cognac and champagne. Supporting each other and unable to stand, they arrived at Berchtesgaden. Major Nicolaus von Below, Hitler's Luftwaffe adjutant, was shocked. After some sobering up, they were still intoxicated. Hartmann took a German officer's hat from a stand and put it on, but it was too large. Von Below became upset, told Hartmann it was Hitler's and ordered him to put it back.