Readded it with less than a minute to go and resubmitted. It's on an external website, though, and although Canvas grabs a snapshot the first time a URL is submitted, it doesn't look like it did the second time. They can go back and delete it again after the fact now for the same effect, as long as it's before it gets graded.
Come on, all I need is a 33% on this and I'm 100% satisfied. We never have to talk to each other again. Not that you talked to me at all about this, before or after shutting me out.