Hayek was too harsh on Freud. It is, indeed, one of the surprising facts of the development of intellectual thought during the twentieth century that Freud—who was so pervasive and dominating during the first half of that century—virtually dropped off the face of the map during the second half. Hayek was almost the last person still talking about Freud, in the sense of taking him as a serious living influence on civilization.
Hayek's Journey: The Mind of Friedrich Hayek (2003) - Ch. 12 : Marx, Mill and Freud