Against the orders of Heinrich Himmler, who wanted to draw distance between the Schutzstaffel and the Church, Muhs participated in the funeral of Archbishop Karl Joseph Schulte in an SS uniform in 1941. Muhs, who had the rank of an SS-Oberführer, was expelled from the SS. Nevertheless, after the death of Hans Kerrl, he succeeded Kerrl as Minister for Church Affairs until 1945.