As the discussion of Locke in the article states, that paradigmatic classical liberal was a mercantilist: so state intervention in the economy was fine for classical liberals. Hayek liked to present himself as a classical liberal, but he was only able to do so by misrepresenting what classical liberals actually thought about the proper role of the state in the economy.

Philip Mirowski & Dieter Plehwe (eds.), The Road from Mont Pèlerin, loc. 2088