People make mistakes. That's the nature of things.
If you are confident you are correct there is always a civilized way of communication.
Last year some dude, who looked like he knew what he was talking about, screwed up my buddy's day by telling us that we had to stop fishing after we caught our limit of salmon.
He said we have to stop fishing altogether that we couldn't do C&R either.
I didn't limit out so I could fish, but my friend had doubts so he stopped fishing (and it was early in the morning).
I was 99 % sure, this guy is telling us this so we leave. But that 1% of doubt won.
The guy put a big doubt in both of our minds.
Of course when I came home I checked the regs and realized that the dude should have been sent swimming.
Know your regs.