Hmmm but think of it from your husband's point of view. He's home, finally in his own nice comfy bed and the cat is scratching away disturbing his rest or just not allowing him to wake up slowly (which I'm pretty darn sure he doesn't get to do when on duty). Letting the cat be his feline alarm clock might be effective but it won't encourage him to like that cat one bit.

I'd respect his time at home, discourage the cat from this behaviour and I bet they'll get along just fine.