Many of the smaller stores have no issue with the idea of refrigeration for them it is not that insurmountable a task. For other stores it is. Stores like Cellar Wine, Byrons, etc.. it is. The expenditure of the equipment needed to house such a large stock, losses incurred while making conversions, overhead for the utilities. Sure, much of this will get passed on to the consumer.
As to whether or not retailers will be forced to refrigerate it will depend on where the regulation "torch" gets passed. Currently, low point beer is regulated by city/county health and as a result it is required to refrigerate.
High point, wine, and spirits are regulated by the ABLE commission and is not required to refrigerate.
At one point it was speculated that the most direct means to accommodate a change to allow the refrigeration of high point, wine, and spirits is to simply adjust who regulates. Thus, if city/county is appointed to regulate then it is possible that everything will be required to be refrigerated. The last I heard about this was that spirits were being questioned regarding any benefit by refrigeration.