What a strange law.
Since the people voted him in, isn't it up to the people to remove him...either by recall now or voting booth later?
I'm not really in favor of the law, but the "people" did remove him. The people elected the state legislature which in turn created the legislation.
This is actually a case of the courts applying the law rather than making it up. The only question would be if the court accurately tallied up his spending.