Overnight connection at Glasgow Central

[H&I]

I have an overnight connection at Glasgow Central and will be waiting for a train on the morning of 11 December. The Network Rail website says that the station closes between 00:30 and 04:00, but where do passengers with tickets wait during this time? Is there somewhere warm to wait outside the station?

Thank you.

 

[gomango]

Taco Bell just outside the station is open till 4am. I think kfc and mcdonalds are open until similar times to.