It was wonderful!
I had been hanging by a thread the last few days and I feel restored. It was very freeing to just walk away even knowing you'll be walking back into it.
Mr. B. is more than welcome to similiar adventures. In fact, a night at home with Mo safe with Mr. B would be totally zen.
We stayed in a little hotel that I had been to years before. Its right on the beach, where the dunes are low and don't present a lose your kid in the sand problem. I remembered that it had a little playground, and a pool, and restaurants and stores within walking distance. From Mo's perspective the best thing about it is that it is right on the railroad tracks. From my perspective the best thing about it is that it is clean, not too expensive, has a kitchenette and is only about an hour from the house. Sometimes you can see whales and seals and once I saw a penguin on that beach. Really, a perfect run away for the day location.
Here's a cool photo from the beach we stayed on: