Just provoke the furthest fat official into moving, w/ an arrow or two, standing far enough on the bridge so the dragon reacts but can't hit you, and watch while the dragon roasts them. Sure you could deal with the dragon first, but they deserve it for staying on the same bridge as a dragon.
I love the Lava Bow, but it's not ideal for laming out Maneater. Oh, but I think I have the means for laming out NG+ Flamelurker now, giving it a shot tonight.