Hmm I guess it just depends on. We have had programs where we talk about different issues and people sometimes mistake them as informational sessions. Occasionally during some of those programs we would sometimes dress casual so maybe that was a mix up??
We once had a "Meet the Deltas" cookout and some people came dressed up. And the rest of us were dressed in jeans and Delta Shirts. In my mind I was thinking its a cookout so dress like you are coming to a cookout.
I'm not saying that these were any of your cases, but there can sometimes be mix ups.
Anyway I guess I would rather be overdressed than underdressed but thats just my opinion