If he had reasonable cause to suspect she had been using it while driving, he can ask to look at when the most recent activity took place.
Refusing could then be taken as failing to follow reasonable direction of a police officer.
At least I see that as a good thing, as he gave her some benefit of doubt. Here, you'll just be handed the fine, and if you wish to dispute it, do so in court, with whatever evidence you have. And our state government has now even given us the special privelidge of paying the court costs whichever way the case goes.
As for switching off her driving (fog) lights, that was yet another good gesture on his part, instead of fining her for contravention of Australian Road Rule 217.
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Yes, I have an opinion. No you don't have to agree with it. Yes I do have a right to it.
