Sorry that happened to you. That is so hard, you get yourself all ready and then what a let down. That sort of happened to me I was admitted to the hospital on a friday with a kidney stone too big too pass. They couldn't do the surgery until Tuesday but they said they didn't have the time so of course I was NPO fron Midnight and in the morning my nurse told me they didn't have the time yet but he would let me as soon as they did. He came back in at 10:00am(I had been up since 5:30am for all the prep) and said the doc forgot to reserve an OR and the soonest they could do it was the next day at 4:00pm. I burst into tears, the poor nurse didn't know what to do. He tried to cheer me up telling me I could eat and drink now. They eventually got me down around 6:00pm the next day. Yep NPO all day, it sucked.
I would also try to get it at the other hospital. I know small hospitals are nice, I grew up in a small town, but so many mistakes were made, I will never do it again. Good luck!