This is such a cute piece, dear! Yeah, Snape can scare anyone into behaving on his or her wedding day. LOL. That he did all that just to encourage a favorable vote against the BWL Marriage Act was just so sly and sneaky. I wouldn't have thought of it.
I can just see Harry's horrified look at first hearing about the possible law and Severus' face becoming dark with anger then smiling mischievously as he thought up the plan.
You know, you are a snake in badger's clothing. (Glad to have you as a Housemate!)