(Not on the topic of intellectual property, but to show how actions after the fact can effect the outcome) In my last year of college one of my professors could barely speak english. I maintained a 100% till the final and received a final grade of 87%. Practically mathematically impossible. After his grades were turned in, I spoke to the department head and complained about the lack of communication and grading. The department head had the grade changed and (I assume) spoke to the professor. I am sorry that I do not know if the professor was relieved because I do not go back to the campus, but I think this shows (through an anecdote) that it is never too late to make things right.
...making offers others can't rufuse.