C.,
I know you are frustrated, and it sounds like your husband is too, and I understand. But I do want to say you are lucky that you have a husband who wants to iteract with his son, and does spend time like that with him. That being said, I want to explain that that is how boys interact. That is how fathers interact with their sons specifically. Your husband probably works all day, comes home and needs his time to "decompress" from work, then he wants to play with his son. I know it is frustrating, but maybe you should move quiet time back half an hour so that your husband and your son have "male bonding" time together. Men often hear a different message than we are sending, and the same goes for women. It is the way are brains are wired (aka Men are from Mars, Women are from Venus). My suggestion with him, is to talk to him using "I" statements instead of "you" statements. What I mean is "I feel like . . . " "I need your help with . . ." not "you don't do this . . ." "you make me feel . . ." Does that make sense? My husband is the same way that way, I say one thing and he hears that he is the worst husband in the world.
I know it is hard, but he and your son do need that rough housing time together, so maybe in addition to speaking with him, comprimise by moving the quiet time back, or agree on an activity that will fit with the bedtime routine, like a book, or something.
I wish you luck.
L.