Them
Contributor
Serious question: do you guys actually read these things before posting them?
Whether criminal or civil liability is at issue, here's the only applicable language: "Harasses, intimidates, or interferes with an individual engaged in the lawful taking of. . . shellfish . . . with the intent of disrupting lawful pursuit or taking thereof."
Setting aside the caselaw one would need to review to really get a more solid answer on what that means in practice (and I suspect those cases deal with much more clear-cut encounters than this one), there's the threshold question of whether Mayer was still engaged in the taking of the GPO when Bob confronted him. Seems unlikely, since it had already been removed from the water, but perhaps the caselaw would suggest that hauling the dead deer to your truck is a protected activity during which nobody may talk to you.
Next, the question of whether Bob's words and actions only while Mayer was still so engaged (i.e., not after) were sufficient to harass, intimidate, or interefere with Mayer's taking of the GPO. What, exactly, did Bob say? How, exactly, did he say it? How did Mayer feel about it, and how did it affect Mayer and his taking? Do I still need to explain why Mayer's credibility is important?
Finally, assuming the act is proven, there's the intent element. Was Bob intending to disrupt the taking itself, or just give Mayer a piece of his mind over his doing it? Again, credibility is a factor.
You are right that any existing case law would be interesting. However...
1) It is not much of a stretch to say someone walking from the water with his catch in his hands is at that moment engaged in the act of taking. Otherwise a burglar would cease to be engaged in burglary as he walked out of a house carrying loot.
2) Regardless of what Bob said, in 2012 a reasonable and educated person would have felt intimidated when a stranger, especially one who has just confronted them, started snapping photos of them/their vehicle with license plates. Intimidation does not require any specific language and it need not be verbal. If someone walked up to you and expressed displeasure at your actions, and then started snapping photos, would you find that intimidating? Most people would, and they'd be right...there is obviously a lot of harm that can come of such photos. Mayer's credibility is exactly as important as a domestic violence victim's credibility at that point - not. There is photographic and computer evidence, and the question is what would people judging the evidence think, not what Bob or Mayer thought.
3) Given Bob's subsequent actions, his intent to stop the hunting at this location is pretty much a matter of record. Can he establish that this intent came after the confrontation? Why would he confront if he didn't have that intent?
As I said, it's unlikely that Bob will face charges over this, but a reasonable lay reading of the regulation suggests he could be convicted if he was charged.