Completed Chipotle IQ Test, Told Daily BOGO Limit of 400k Reached?

Why does it say that there's a limit to 5k per hour but nothing about daily limit and yet I completed the quiz 10/10 at 10:00am MST and was told that there were no more BOGO coupons for the day?

I read the official rules which state this specifically about # per day:

"Additionally, during the Contest Period, up to Four Hundred Thousand (400,000) Chipotle Rewards Points Bonuses are available per day"

So if it was 10:00am MST and they give out 5k maximum per hour... someone tell me how they managed to hit 400k for the day by 10:00am MST. That doesn't math.