I scanned an article about this recently. IIRC, he was wearing a pin that said "Please ID Me" and a shirt with a political message. All passive. He never opened his mouth to try to influence any votes.
Thank you!
I was in Minnesota for the 2010 general election. The SoS stated that anyone wearing anything with “Please ID Me” would be arrested. I had no such apparel, but presented my Minnesota driver’s license without being asked. I got a major stink eye from the election judge. Then I found out that someone voted for me.