Total ****. They could have got that out to you in under 5 mins, even starting from scratch.
The longest element that needs to be cooked is the eggs if they don’t have any ready, they take about 3-4 mins to crack and cook a batch of 16 if they are literally starting from nothing. They should have cracked eggs pre-staged ready to drop on the grill. They keep cooked eggs for 20 mins in the holding cabinet and nearly every product has it, all the best sellers do. Pretty much every food order has one in so they should always have them on the go.
The sausage is done in 60 seconds and you can do that while the eggs are cooking. They can keep cooked sausage for an hour in the holding cabinet, I can’t see any reason why that would have changed and why they wouldn’t have any good to go for the entire breakfast service.