I think you did fine by endin it. I mean even if you did keep goin and kept tryin to work with her and get her to do what you wanted, you would of made no progress. Sometimes you just got stop and end on a good note like you did and put her up for the day, just don't get into a habbit of doin this or she will start to think that attitude means no work.
You did do the right thing, but when the saddle fell off did you try just lettin her calm down in the comfort zone where she wasnt scared of teh saddle? You can try just lettin her calm down then just work your way to the saddle, and if she she tenses up then just back off for a sec. I know you should have to do this because she has probly been around the saddle alot, but sometimes horses can just be turkeys...
Hope it works out,
I love my horse. She is the wind beneath my wings.
John 3:16 (READ THIS PLEASE!)