Is there only a requirement for a name, or is there also a requirement for an interaction with the manager, physical description, or just an observation to make sure s/he is on duty?
ACL had a shop where they tried sneaking in the manager's name as a requirement, though it was not mentioned in the guidelines. For whatever reason, they recently lost that account.
I would not worry about being conspicuous by asking for the name of, or to speak with, the manager.