Glad to hear it. Welcome, by the way. Im new here too. I've read around a lot but have posted very little due to my lack of experience.

My snake was underweight and dehydrated when I got her too. With all the issues I have been dealing with since I got her, eating has not been one. She has always taken a meal that was offered (as long as it was still hot enough).

If you are really worried about her weight, I would try to feed her soon. If she doesnt accept give it a while before you try again (a few days atleast).

It's good to hear Sam got a good home. It's also unfortunate to hear that an organization such as the YMCA would allow something like this to happen to a snake. Caring for a small child can be a hassle, much less a group of them. If they cant take care of a snake, it should'nt have been there to begin with.