Electioneering in the Polling Place

So, as a poll worker, we were instructed to tell anyone in the polling place that wearing pins or t-shirts, etc. that represented a candidate or measure on the ballot was electioneering under California Law (and caselaw). I didn't see anyone doing this, although we did require people to close their newspapers and put them away (as the front pages occasionally had endorsements). I've heard of other CA counties doing things like including a large white t-shirt or hospital gown in the election supplies that people with such things on have to wear while they're in the polling place.

However, check out this picture taken in a polling place in Concord, where Kevin Veliz is clearly wearing a Governator shirt (from a story in the Contra Costa Times, "Some East Bay voters might have used wrong ballots"). Sounds like the poll workers were either ignorant of the electioneering statute or just turned a blind eye to this blatant form of electioneering: