What the business/professional community needs to do is to develop some kind of standard sign that says, "We don't discriminate against anyone" or "We're proud to serve everybody," or something of the sort. Display those prominently. Put decals on your doors. Attach them to your outdoor signs. That way, people who oppose this nonsense (and I suspect there are a lot of them) will know where to get their pizza or their oil changed or buy their groceries or get their medical care. The legislature has just dealt a blow to business owners and professionals all over the state. I don't know if you have a state sales tax, but if you do, they've also just dealt a blow to the state coffers. Discrimination is not only immoral, it's bad for business.
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