No, you don’t argue “your case” with the cops ... your lawyer does that in court ... :-) ...
That is, unless the LEO decides to be your judge, jury, and executioner, all for feeling threatened, then you have no say in the matter at all.
Like I said, if a cop wants to nail you for something, they will find something.
As for the whole drug dog thing, all that will happen is that if the LEO suspects you possessing drugs during a traffic stop, they will just go back to their squad car, feign writing a ticket, and wait for the K-9 unit they called to show up, and let them do a “random” drug sweep, just because they “happened” to be in the area, and stopped to see what was going on.
I have several cops in the family, and I don't really talk to them because they inherited the sociopath gene from somewhere in the family tree.