If you can get it ticketed then that would be the only exception. However, you would not be able to touch the US again including connecting from South America to Europe or Australia via North America. American very clearly does not want Hawaii being used on a OWE. I think the only reason that they included the places they did is because that's where flights happen to be. But AA has very consistently interpreted the rule that once youre in HI that you need to move on to Australia or v.v.