Meyszner remained stationed at Judenburg for the next nine years, although he was sent on several detachments. In 1921, he was promoted to "Major der Polizei" (Major of Police). While commanding a gendarmerie detachment sent to oversee the unification of Burgenland with Austria in August 1921, Meyszner was shot in the leg by local Hungarians rebelling against the transfer. In 1922, his unit subdued significant labour unrest in the Judenburg region and in 1927 it quelled a strike in the aftermath of the July Revolt of 1927. Meyszner joined the Austrian Nazi Party on 5 September 1925, and was allocated membership number 10,617. In May 1927 he was granted an audience with Adolf Hitler, along with two of his Home Guard comrades, Walter Pfrimer and Hanns Albin Rauter. On 1 January 1929, Meyszner was transferred to Graz where he came into contact with more right-wing organisations.