"Ironic use" of sic[edit]
Occasionally a writer places [sic] after his or her own words, to indicate that
the language has been chosen deliberately for special effect, especially where
the writer's ironic meaning may otherwise be unclear.[18] Bryan A. Garner dubbed
this use of sic "ironic", providing the following example from Fred Rodell's 1955
book Nine Men:[2]
[I]n 1951, it was the blessing bestowed on Judge Harold Medina's prosecution
[sic] of the eleven so-called 'top native Communists,' which blessing meant
giving the Smith Act the judicial nod of constitutionality.
Wikipedia actually shows this newer usage of it. From https://en.wikipedia.org/wiki/Sic#.22Ironic_use.22_of_sic: