“… in Car Parked on Company-Controlled Parking Lot is just fine, holds the U.S. Court of Appeals for the Sixth Circuit in Plona v. UPS. … By the way, to anticipate the likely “of course no court would ever hold this as to other rights, such as free speech” arguments: In most states, nongovernmental employers are allowed to fire employees based on their speech, even speech that’s entirely outside employer property. (For a list of the states that take a contrary view, see this post chain; I had hoped to blog about more of the statutes than I noted there, but didn’t have a chance to.) There’s certainly no constitutional constraint on firing employees for their off-the-job speech — the Bill of Rights generally applies only to government entities, not private employers — and there’s no federal statutory constraint on it (except as to a few types of speech, such as union advocacy).”
–RKBA stalwart Eugene Volokh, with excellent analysis. Surprised? Read the whole thing.