Welcome to the forums, Cbarr. You should not worry at all about accidential team kills as long as you feel sorry. Accicently teamkilling a lot of people is part of the learning process and sometimes everyone has a bad round and thros this nade right into a group of teammates or simply shoots a friendly every time. Most people are indeed forgiving, I jsut get a bit mad when people don't say sorry, but often, especially on 64+ you don't even realize you teamkilled someone, because the kill message disappears. Stuff happens, team killing and getting team killed by accident is part of the game.
Despite the "waiting in line" rule.......teamkilling does not solve everything. its not eye for an eye and tooth for a tooth on FH2 servers.
More like, it does not solve anything
does it ?
I was waiting for a plane in line and he spawned, stole my vehicle(even when it clearly says that u have to waint in line) and when i shot him as part of retaliaton beacause he was acting like a d*ck (when i said that he must waint in line and i was first he said "so what?") and i got teamkilled by some random guy waiting for plane too and i get banned?!
When an admin breaks a rule the most stupid thing is to team kill him out of rage, just stay calm, there are worse things than a plane being stolen. Try to take some screens if you can, keep the name of the admin in mind and go to the 762 forums. That's all you can do. I have never had any problems with any admins. I would just comment that I don't approve the behaviour ingame or suggest the guy to stop it in the future and leave it at that. Note that intentional team killing is ALWAYS the wrong way and makes you as worse as him. It's your right to complain, but I personally don't need it and it won't help you anyway.
I'd suggest the 762 team to unban this guy though, because the whole thing seems to be initiated by wrong admin behaviour.
Hahahah. I hope it was on one of the 762 servers? Gay rule 
Why is this a bad rule? You're waiting for a vehicle a few minutes, but someone else who is waiting 1 second takes off with it.. Little unfair don't you think? And please don't say "You should fight instead of wait for a vehicle", because if everybody would do that, there would be only inf and the vehicles in the bases are unused.
This is not a bad rule in general. But please take a look a the airfields on some maps on the 200player server. A huge crowd spamming E standing at one point quite often. There is no wait in line, it does not work. What are the admins supposed to do, kick the guy who took it first out of those 10 people because he was lucky, while everyone else had taken the plane as well ? Admins can't enforce that rule, if people would follow the rule, it's fine though.
