Can you share an example from the source about the consequences of disobeying Baba's instructions about travel and eating?

Yes, Chapter 9 provides a direct example involving the author of the biography. Sai Baba advised him, "Eat a piece of bread and leave after noon." However, the author ignored this and set out for the station in a hurry. As a result, the wheel of his bullock cart came off and fell into a ditch. While no one was harmed, the delay caused him to miss his train. Consequently, he was forced to stay, eat at an eatery in Kopargaon, and take a later train, thereby suffering the consequences of his disobedience as described in the chapter.