OWM, eh...But you know that a private citizen or entity is not the government. The employee could even get that provision negotiated into a private employment contract, as that's what contract law covers. The corporation would be subject to employment guidelines, but that's an entirely different thing than what we're talking about. If you had a spouse, you could search their closet for anything, where agents of the government need a warrant (or probable cause/exigency). You know what I mean. A company who hires an employee with the understanding that they'll work on Friday, is not the same concept as the government decreeing that all employees have to work on Friday, regardless of circumstance. The legal/Constitutional issues are of a completely different scale.