This is actually an important article. I've heard lots of incidences where cases were made that took the point of view if you are in somebody's business, their rules trump your rights (Yes, I know the article said business parking lot, not "business" but I think the principle applies. Don't property rights convey with the person, not with the property?).
The Constitution does not incorporate private businesses into the State. Your rights enumerated in the Constitution are enforceable against the state only, unless legislation specifically gives you (or the state) a cause of action against a business.
Neither circumstance applies here.
"...all men...are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. That to secure these rights, Governments are instituted among Men..."
So say the Founders.
"...if you are in somebody's business, their rules trump your rights..."
So say some other people.
Whose words have more credibility?