I still don't think this was shoddy at all. Under these standards any judge can throw out anything. With all confessions, for example, there is some level of persuasion. The witness consented to the police behavior. If he regrets it afterwards, tough for him.
We're going to have to agree to disagree here then. If cops would have covered all their bases, like going out of their way to get a warrant and such we wouldn't be having this discussion, now would we?