Racing on Timberland today, I spawned with no hogs but saw one speeding away over the jump, in the direction of my next nav. I could see on my radar that it tumbled, spilling both driver and gunner (pesky rock); lucky me, I was heading that way anyway. I reached the top of the rise as they were hopping back in, and tossed a nade in an effort to usurp the hog. As I did so I realized that I was rather more, well, elevated than them when I tossed it (I never stopped moving toward them, though, on my way to the bottom). Was that a violation of the "elevated areas" rule? To be honest, it's something I've probably done a lot on Timberland because I've somehow never thought of it as being equivalent to camping from the cliffs in Sidewinder or Ice Fields.
At least 2 admins were in the server when I did this -- Hydra and Invert, maybe? -- but didn't say anything, likely because they didn't see me.