Greater than supreme?

"I need you to bring out the heavy stock to the old hangar," Makary spoke to the phone he held between his left ear and left shoulder. With his left hand, he controlled the steering wheel while actively shifting gears with his right. 

"Yes, I need it done for yesterday." 

"I will be waiting."

Since the call wasn't on a loudspeaker, I couldn't really tell what the conversation was about. All I managed to figure out was that the phrase Makary opened the call with had to be some sort of code…

Because after ending the call and starting another, he used the exact same words. 

"I need you to bring out the heavy stock to the old hangar."

In the end, Makary made a total of seven calls, four of which started with the sentence mentioned while the last three started with "I'm really hungry, what would you say about getting a proper barbecue?"