At what point is intentionally going against the wishes of the party at large opposed to the cooperate portion of Explore, Report, Cooperate? How do you judge this falling into "don't be a jerk" guidelines? How far does "I'm just playing my character" get you?
It is going to vary greatly by location, players, etc.
From your description, the other players were getting upset. For me, that is the key point where the player has very likely crossed the "jerk" line.
If I was the GM, I'd have probably taken the player aside and asked him to tone it down, to cooperate. I'm lucky in that we have a quite cooperative bunch of players up here so I've never had to take it past that step.
I think (emphasis on think, not sure and its a LOT easier to say this than do it) that if the player refused at that point I'd flat out tell him he can NOT do that. In the full expectation that would cause the player to rage quit.