It does sound like some kind of seed bug to me too. I'm guessing that is a full grown one in your picture. They can look so different in the stages of their life cycle from nymphs to adult.
On another thought, since you said "bright orange", I'm going to throw Milkweed Bug in the ring. Milkweed bugs are very destructive and known to destroy undeveloped seed pods, amoung other things!!!
