I need reassurance.

As some of you know, Molly is recovering from her spay surgery on Thursday. The vet said no walks, even, let alone any other exercise or play. Well, this is a 6-month old pup, and I cannot convince this dog to remain calm. She's on pain meds and obviously feeling loopy, because she seems to be more excitable than usual. I have three kids (2, 4, and 6) and the only way to keep them all from getting her riled up is to confine her. She can't fit in her kennel with her collar on (and taking it off is not an option-- she's too obsessed with the incision), so I've been putting her in the laundry "room." (It's really more of a closet.) Since the laundry room is adjoining the family room, I thought I'd try using the baby gate there, but she just wants to jump over it. She's spent the last two days in there, door closed, with the exception of our brief bathroom breaks outside, and a couple of hour-long naps on the floor with me. I feel terrible, but I don't know what else I can do with her. As soon as I let her out, she's trying to wrestle with the kids or run laps around the house. Any suggestions? I'd like to know that I'm not an awful mom for failing to find another way to keep her from being too active. She has not complained much at all, which makes me think that maybe she needs the rest, but I can't help feeling bad. It's contrary to what I was anticipating. I don't know why I thought she'd be content to lounge around while she was recovering. She's so NOT willing to chill out. What did everyone else do during this period?