Of course Bolton was left trying to put the best face on his short, inconsequential tenure:
Bolton has described the U.S. campaign to reform the United Nations as an "irresistible force" pitted against an "immovable object."
Putting aside the concept that reforming the United Nations begins with punctuality, Bolton really is making this more complicated than it needs to be. He's an Ambassador from a country that's made itself a worldwide pariah in it's slapdash foreign policy who arrived at the U.N. without the support of congress through a recess appointment and sporting a reputation for being what is euphemistically referred to as "a colossal jerk."
It could be that the reason delegates couldn't show up on time to the Security Council meetings because they had busy schedules. There could be cultural reasons for the tardiness.
Most likely they were just dissing him.