1. He is a soldier/cop. You pretty much have to ask permission for this kinda stuff...and he wanted to make his intentions clear. What if they saw him fighting Paralaxx without their say so and they just yanked the power ring out from under him?
2. Possible deleted scene. There's apparently left on the cutting room floor from this movie because the producer felt it was running long. To bad they didn't take a gander to see if what they cut was important for future scenes they felt they had to leave in!
3. I think this may be the 20th century version of Tom Kalmaku, Hal's best friend from the silver age.
You may know him better as Pie. Albeit he is white washed for the movie. We haven't seen Tom for a while in the comics because, I think, writers are afraid to use him because he's Inuit.