Well if you never got the chance to comp because they logged off as soon as you break a rule on them (ex: accidentally lethal them) contact sAPD and tell them about the situation before the player reports you. If you acknowledged your mess up before a report gets submitted on you then it will be better for you.
Well its case by case but generally if they blatantly break a rule and don't compensate it will result in a demotion/removal. People will have different opinions on reports and it will always be that way.