Sadly that's true of business owners pretty much everywhere. Corporations can have many different ownership structures, so it's very difficult to determine who

Sadly that's true of business owners pretty much everywhere. Corporations can have many different ownership structures, so it's very difficult to determine who qualifies as an "owner" or not. To use a ridiculous example: I own stock in Berkshire Hathaway. I'm sure there's a GEICO office or some other Berkshire Hathaway property in Palo Alto. Does that mean I should have access to the park under the current rules? Probably not. It's hard to draw a bright line when it comes to admitting people based on business ownership. Even in the case that the business is a sole proprietorship, how does one prove both ownership and the business address? You'd need to bring a ream of documents. Residency is easier to check and simpler to judge, since it just requires showing ID. Here's another example: Non-resident immigrants can found companies in the US and pay taxes to the US government, but many of them can't even enter the country. Again, I think this law is stupid and I'd love to see the city of Palo Alto change it. But I don't see how it's unconstitutional. As history has shown us, the US Constitution allows legislators to pass many, many stupid laws.