Legal Question in Consumer Law in North Carolina

Actually, this scheme is not illegal. It sounds as if the landlord is using parking passes/stickers to control the parking in the area which is somewhat common depending on the area (many complexes in most of the larger cities and town in NC require parking passes or they tow cars in reserved spots) or as you theorize, for advertisement purposes. There is nothing illegal about this. If the lease or an addendum to the lease requires this, as a party to a contract, you have the right to not lease with this complex and go elsewhere.

You came up with two hypotheticals that you believe makes this policy illegal. They in fact do not. Both of your scenarios forget that if someone wants to stalk or find a person, there are many ways other than a sticker to do so...they can simply follow you or look up your car tax registration on the internet, which can be found in practically any county in NC.

If you or another person you know if being harassed, you have the right to file for a civil protection order with your County District Court. Once you have this, you can work out a plan with your landlord to further protect you.

If these were merely hypotheticals, unfortunately you can't use hypos that don't apply to you to declare a policy illegal or wrong.