I wanted to get out before it affected property values.

I suspect you overreacted: In LA and San Diego we already pay more for water transportation than we would pay to run municipal desalination plants. We really can make just as much fresh water as we want, and the water will be cheaper than the rates we are paying now. So I doubt a "temporary water shortage because we are too stupid to build desal plants" will harm real estate prices. They are still building homes, so that tells us something. I bet the politicians are just waiting for developers to pay for the desal plants, like they do with everything else.

I predict there will be disparity: Water districts with contracts to buy desal water will have plenty of water. Districts that don't will have extreme rationing.