Not going to get into the MPD situation, but instead ask about this above stated by Jawbone.

I may not have to stop and answer questions if a police officer asks me to talk with him, or "come here" or something else. And as he said, if there is no suspicion that I have done anything then I shouldn't be detained.

But I'll guarantee you a brazillion dollars that if I'm walking down a street anytime of the day or night and a police officer wants to talk with me and I refuse, walk away, decline, tell him to FO or anything else OTHER than stopping and talking with him, he/she will not go peacefully away and say, "Well, that's his right to walk away."

That's unrealistic. Walking away and ignoring an officer's request -- even if legal -- will put many if not almost all of them on "Hmm, what's up with him?" alert and things will get worse. Guaranteed.

Yeah, I may be legally OK saying "No" or ignoring them but if I walk away, or run, or anything else then things aren't going to go well.