I voted, also. This morning about 7:30 there were about 50 folks in line with another 20 or so in the process of voting. Turnout was less than half what it normally is during a presidential election. In and out in about 20 minutes. I voted using the same fill-in-the-arrow optical scan ballot that we've been using for the past 20 years. No problems.
You used a photo ID to vote in the St.Louis area? Did they even know what it was or did you have to tell them?