Background: I have an incomplete from an old course. I have submitted now all the old homeworks to the professor, with a couple weeks to grade them before the I lapses to an F. She wrote that she is going to a conference soon and doesn't have time now to grade it. I'm totally ok with getting a low grade in this course (just not an F; maybe a C+ or B-) even though I think my work is worth more than that.
Is it inappropriate to write the professor and suggest that she just estimates a low grade for me and not actually grade the work? I'm fine with that (and it's definitely easier for her, whether or not she'll admit it). The alternative is she slaves over grading it in a day or two (which she understandably doesn't seem excited about) or we petition for an extension from the department (or I fail). Would this be an offensive suggestion? A good suggestion? Not worth trying? Worth trying, even if she does say no? I don't want to offend anyone though (that's not going to help my cause at all).
I'm not trying to be unethical to get out of work (a short look through the homework should show that it's not just chicken-scratch and I really worked on it); this is just to try and simplify life for both of us. The idea is roughly that she can give me a grade which definitely does not overestimate my ability, so she doesn't have to feel unethical. The fact that it may underestimate my ability is my loss and I'm willing to accept it.
(I understand that I should have been in better contact with the professor about when to submit the old homeworks.)