HELP!!!

Okay I am on a week long liquid diet and the doctor told me today that I could have lean protein once a day before surgery since my surgery is this friday.  Well as soon as I leave the office I run to taco bueno and eat a crap load of carbs!!  What was I thinking????  What should I do?  Should I call and tell her or just get back on track?  I really need advise here!!

Probably would be smart to call and tell her as well as get back on track, she will probably tell you to do that anyways