No on a whim. Once the OPEN sign is up there is a contract in place and he can not rescind it.and he has the right to revoke your privilege he has given you at any time.
It is not a privilege when you ask me to com to you.since he is giving you a privilege
Why else would you ask him to come to your business?the person entering has no exercisable rights......no right to be served.
No right of the business owner is violated. His contractual obligation has to be met.the only rights which exist are the business owners, and they are being violated by government forcing him to preform and action, against his will......which is a rights violation