It is a little tricky and somewhat involved . . . but criminal law is procedural in that things need to follow a certain order and also there are landmarks if you will in the process that will trigger rights and make actions by the cops unconstitutional . . .
the right to remain silent is not absolute . . . well not absolute in the sense that you can't barred all silent actions from a court of law . . . although most are . . .
Just because you remain silent does mean you have can't be questioned. You have to say it and new case law out of Texas has gone one step further and you have to say to affect something along the lines of your 5th amendment rights
one key landmark in the police inquiry is whether or not the questioning of the cops has rose to the level of custodial interrogation, with interrogation being you are being questioned by the cops, and custodial being whether or not you feel free to leave . . . with the latter being the battleground as the cops questions prove the interrogation prong . . . the custodial is the battleground, at one end a person staying in his doorstep being asked question is not in custodial as he is free to leave as he can tell the cops to leave and close his door . . . at the other end of the spectrum is a defendant in handcuffs answering questions in a 8x8 room at the police station is in custody as not reason person would feel free to leave in that situation . . . fact pattern in between are the battleground, but the two examples above are clear case of each side of the coin
and the rules are different regarding statements and actions before and after custodial interrogation . . . actions prior to custodial interrogation are admissible . . . however with respect to statements the DA here in Massachusetts needs to show that the statements are voluntary (humane practice rule) . . .
You only listed one of the three prongs and there are two others. Knowingly, voluntary, and intelligently. You could have a drunk guy give you a voluntary statement but it does not meet one of the other two prongs that's why there are three prongs and not the one you have laid out
so bottom line although we have the 5th Amendment in this country and the "right to remain silent" . . . non responsive conduct prior to custodial interrogation is admissible . . .
given a fact pattern that AH is being asked entry level questions on his door step, and thus is free to leave and close the door, he is not in custody so there is no custodial interrogation even though there are questions being asked . . . and as such his non response is admissible in court if, as in this case, it is relevant to a crime,
of coarse not all non responsive actions are relevant . .. a non response to a question do you smoke pot is not relevant for anything really, but when the crime is you having the intent to harbor a criminal and prevent the police from finding him a non response to a inquiry of their location is relevant to you intent to keep there location from the cops . . .