Well, first of all, that’s what I did last year, not this year, although it was only marginally different.
Secondly:
Avoid shooting objects; not do not. I have things listed in the parameters that are absolutely not to be done, and they are described with “do not,” and others that can be permitted in extreme cases, depending on how the mission allows certain actions to proceed, and they are described as needing to be “avoided,” meaning whenever possible, but can be allowed when it’s not possible to avoid.
In this scenario, to prevent myself actually going beyond my parameters of perfection, small sacrifices have to be made, and firing a shot to detonate a fire extinguisher in order to blow up the target’s car “accidentally” is unavoidable. Still keeps the possibility of evidence being found to a minimum, because only one shot is needed to set off a fire extinguisher, and of course -