Being a "dog" from Grand Rapids, I was sniffing around for a tourney and noticed a "red herring" on the DGS site regarding directions. You might get the DGS guys to fix it. My comment on the course and tourney pages was this.
The "Driving directions" on the Course page and the "Get directions" on the About page for the upcoming tourney get you to a credit union in Mt. Pleasant. The following URL is copied from the "update course info" page for this course. It looks good.