You know how in movies helicopters always start up and are airborne within 10 seconds or less. I think they just cut out the part where they both splashed into the water, then Maverick tried to figure out where his buddy is who I am sure didn't land right next to him, had to swim over to him and by that time a person can easily drown.
God! Listen to me! I am such an aviation nerd.... he he 
Actually, have any of you ever seen anybody drown? I have. It can happen pretty quick actually...
I can ask about the green dye. Some of my friends used to be NAVY seals. If you ever get your hands on that stuff, don't play with it. Those same guys played around one day at a campfire showing a couple of little kids how this stuff works by using just a little dye... Next morning they got woken up by a hazmat team because some scared lady thought the pond had nuclear waste in it and they got in trouble (I guess the lady saw too many "Simpsons" episodes...)
EDIT: look at what I just wrote....
...with friends like this... no wonder I make cartoons !!!
You're overanalyzing a moving comic book.
The first real joke is how the canopy could have been there in the first place. During the eject sequence, the canopy is flang into a galaxy far, far away well before the seats fire. The absolute last place the thing would be is hovering over the cockpit.
The second joke is how running into the canopy would be a problem, when the Martin-Baker egress system used in the F-14 Flying Turkey is designed to GO THROUGH a canopy which fails to eject (and in some aircraft, the canopy isn't ejected at all, there is just a fracturing charge that breaks up the plastic before the seat goes through it).
The helicopter was there so soon because they had a copy of the script!
The packet is both marker dye and shark repellent. It tastes like someone else's spit, but is non-toxic. Considering the stuff that sharks have been known to eat, I don't think it would slow one down much.
