(I was taking a bit of a jab at cops by implying they aren’t capable of free agency, which could have been more clear.)
I’m not sure if you understood my point. An absolutist approach isn’t representative of the real world, which is fine because representations don’t have to be perfect (by definition, I think). The question isn’t where do you draw the line, as with all trolley problem questions it’s why do you draw the line. Did the person who called the cops get him killed? Well, in an absolutist view, yes they did. They put him in the situation to get him killed. The cops are also guilty of killing him, as is the person who made the hypothetical counterfiet money.
But since we do not live in a truly accurate representation nor too a strict absolutist one, where do we draw that line? Its not a question of where in the legal code do we draw that line, or if their behavior was excusable or inexcusable, it’s a question about how we determine the answer to those questions.