This isn't really a bug, but just found it interesting that you can get above the max honor limit during storymode, and it carries on when you get out. I hear from other players that it appears as 5k when they check my honor, though, so it only holds "cool" factor for me. Poo.

so, can you get more honor still since you broke the limit?

I guess not, because I attacked Glaistig, who gave me -24 honor. Instead of it being 5093, though, it went down to 4976, acting as if my balance was 5000. Well, I suppose that's a farewell to that cool factor.