Can shipments be processed at any time of day?

I always call ahead to make sure their ofc hours. My latest the last time i went was around after 9pm

Like Val, I don't believe the shipping center is open 24 hours, just the printing/copying center. You'll have to call the store for specific hours though.

I don't think they are open 24/7, but have extended biz hours. Give 'em a call!