I am not sure why you agreed to the meeting in the first place, i would never let him call the shots on meetings.. i would give him a time and place when its convenient for YOU and let HIm choose to come or not... don't let him LEAD this... if you let HIM LEAD this its going into chaos... he has no idea what he's doing... YOU need to call the meetings, times, and places...
Yes! Yes, yes, YES! I wanted to say this same thing, but time was of the essence and I forgot. You should always say "no" to the first request for a hoop-jumping meeting, and tell them "maybe" you can do it a couple of days later. Let THEM twist in the wind.