I have made a mistake simaler to that! We had a WHOLE chocolate chip cookie in a backpack and one of the pockets were open and the choco. chip was in a plastic bag and Bailey ripped the plastic bag and ate some of the cookie. Thank god she was ok and NOTHING happened. Bailey is sneaky and she also took one of those ceasers treat bags(full) that was on top of her crate opened it and ate the whole bag.
her tummy was ROCK hard. She didnt want to eat anything for a couple days. Lesson learned:be careful around sneaky Bailey. We all make mistakes, its ok. Just I would check with the vet or let it pass.