I agree, those were enlightening. I still fell exceptionally lucky, my recovery was extremely uneventful. The only reason I was in the hospital more than 4 days was they would not release me until my INR was over 2.0, otherwise I had surgery on a Thursday and was supposed to be discharged on Monday, but it took until the following Thursday to get my INR to 2.0.
I can sort of understand their reluctance (especially for legal reasons - covering their butts) that they didn't want to discharge you until your INR was over 2.0. It's another day of billable service. However, if you've been taking warfarin for a while, and know what your regular dose is, it should have been pretty clear that your INR would return to its normal range within three days of resuming it, whether you were tied up in a hospital bed, or at home.
I've had minor procedures in the past, dropped my INR below 2.0 for the procedure, and I've done fine getting my INR back up into range after three days of my standard dose.
Sure, it's good to be overly cautious. It probably makes sense to keep you until your INR gets above 2.0 (even though they probably know that it will, regardless of what they do). For me, if I was responsible for paying for anothe hospital day, I may even leave against medical advice, knowing that I can do daily testing to assure that my INR quickly snaps back into range.