You have a few options, and a little time to find a solution.
Is this your only chick? And do you plan to get more?
-- Look into crow collars. There are also some homemade things that folks have found to help reduce crowing, as simple as slipping a cut-off baby sock around the roosters neck. It doesn't hurt him, and keeps the crow less noisy.
-- Also, I think one singe rooster will crow less than if you had several.
-- Could you keep it indoors? Inside in a cage, or in a garage? Dusk and dawn are when they crow the most, but mine crowed off and on all day long.
-- Risk it until you are reported and forced to get rid of him.