Oh my god! who do you think you are???
All this fey "it's all about my DD' bollocks.. what a crock of crap! you are still trying to pull your ex chain!
You rang his DD 2 hours into his access time? really? WOW.
Of course he wants to stick to arrangements if he has planned other things - this doesn't mean he loves his DD any less - please don't tell me that you are telling your DD otherwise? - cos that is what the mother of my OH DC does.
She also changes arrangements last minute, and again and again UNTIL she hits on something OH can't move, then she lays it on thick to DC and to OH how uncaring he is and how DC feels unloved. (she doesn't thankfully, but it takes an enormous effort on both our parts to support her against her mother's manipulation). 9.30am collection on new years day anyone? 
If your priority were your DD you would know that what you are doing is actually HARMFUL to your DD. You are undermining her time with her dad, you are damaging their relationship because you can't bear to step back and let them be.
Good for your ex that he is setting keeping these arrangements. He doesn't need to pander to your every whim, or anticipate your every need. he wants to see his DD when its arranged and he wants to have his life and his things on the times he doesn't have her. You are expecting him to just carry on doing as you tell him. Guess what? you are not the boss of him. He has a life and deserves to have one.
I couldn't understand why he would not be at home when he knew he was getting DD within a couple of hours. Just seems irresponsible to me
Just as well it's not your business anymore. You don't have the right to input on how he does things. He can arrive at his home at the same time as DD if he likes, he can arrive and have nothing in the fridge, no sheets washed, that is all his business and things he can sort out when she's there, because HE is a parent and fully able to run his home how he likes.