That is some pricey firewood! I know cedar dust can be irritating compared to the dust of other kinds of wood but is everybody allergic to our environment now? Seems like the artist could have spent a little more on her project and put some varnish on it preventing anyone from having a problem.
That's what I was thinking. Rather than spend $1.2 million carting it away, spend a few bucks and spray it with a sealing varnish. Problem solved.