Hind sight is 20/20, :shock: every one can say that the splint was overkill since she walked out of the ED w/o a fx, But by your statements, I would have suspected a femor fx also, like you said, classic signs.
I would have probably withheld pain meds also, being so close to the hospital and no IVs, So dont beat your-self up over it, And all i can say about the Doc is tread carefully my friend, they can be your best friend, or worse nightmare. 8)