Our Chicken salad at work has slivered, toasted almonds and they never go soggy. The batches they make typically get used withing 24-48 hours. They have a high fat content, and are quite dense, so there's not really room for moisture to soak in and make them soggy.
Always try to bring a spare set of clothing when you dream about going to work or school. That way, if you encounter someone having that dream where they show up in their underwear, you'll be their hero.