As a general rule, people are not able to use a TS for a CS. They made exceptions during the free F&W do to the difficulty of getting adr's. We have not seen widespread reports of this being the norm however.
I like the idea of using it for breakfast. Otherwise, can you order an extra meal one night and try extra things?
(and if you have charging privelges on your card, DO NOT give your last meal to anyone if it means giving them your card)
Let us know what you plan on doing and have a great trip!