Arno Penzias when he directed Crawford Hill Laboratory at Bell Labs is said to have sent a memo to the scientists working there. In the memo he said that a VP had visited Crawford Hill and noticed that there were cars arriving in the parking lot late, between 8AM at least until 9 AM, and leaving early, at least between 4 PM and 5 PM.
Arno asked all staff reading his memo for the following. If you have to come in late, please try to arrive after 9 AM. If you need to leave early, please leave before 4 PM.
I never saw the memo myself, but I did have the pleasure of working at Crawford Hill for nearly 2 years in the late 1970s. I find the existence of this memo easy to believe. So at minimum, it is a good story, might even be true. My own meager google skills do not turn up any corroboration on our universal consciousness.