My dog ate TWO chocolate cupcakes, do I need to take her to the vet?

My cousin came by and brought cupcakes with her, and put them on the edge of the counter. We forgot about them, and we didn't consider that our new dog (of 3 weeks) would get into them, because our last dog would NEVER grab food off the table or counter. We came home from dinner to find she ate both of them, and they were red velvet so chocolate and cream cheese. The thing is she is acting COMPLETELY fine. She hasn't thrown up yet, and honestly I don't want to tak her to the emergency vet if all it will give her is some indigestion.