Does the hours for customer service to do returns differ from the regular store hours?

There always seems to be someone available

There's always people at customer service and ive been in there right before closing

I'm not positive because I work in the back but I believe we have a CSM in front at 6 in the morning.

Yes and no if it is a small amount under twenty they will do it after customer service closes well in the past not sure about today

Store closes at midnight. Customer service closes at 11:30 pm I just called and varified

No