That would have been very distressing!! So glad they had the daycare option for you.We had dinner and a horror show. We left the little guy in our cabin in Disneyworld. it is a free standing unit, and he had his own little perch on a pillow in front of the window. He loved it there. We decided to turn on the camera and go out to eat and were gone no more than 1 hour 15 minutes. During that time, the phone notifications were coming fast and furiously. We turned on the live feed, and to our horror, he was running from the window to the door, whining and crying, and at one point, he sat up on his perch and howled (nose pointed in the air). We couldn't shovel the food into us fast enough and get back to him.
He does NOT do that when left at home alone, and we thought we left him enough of our scent, plus he had been in the cabin for 2 days already. Lesson learned, and we put him in Disney's day care, as I mentioned above.
Our old little girl Gracie started stressing like that when I left my career and she no longer had a "job" to go do with me every day. The lack of routine and stimulation really took a toll. I set up my iPad to record her when I went out one day, because I kept coming home to uncharacteristic messes (pees, poos, shredded things) and the chaos started within a minute of my departure. It was HORRIBLE to watch. And the yelping broke my heart. From my typically well-mannered, very mature girl!! I was shocked.
So I started crating her when I had to go out without her and voila she was a dream again. Settled right down. Perfectly relaxed. I could take that crate anywhere and get the same behaviour.
She was a dog that desperately needed structure.