I was recently thinking La Do Da is kind of an odd choice to play from the Infinity era. I did hear it sometimes on Bay Area radio back in the day, but from that era, Feeling that Way / Anytime seems to be notably absent from their set lists.
What if between songs, the band announced a 'contest' where fans could vote for a couple of songs to be played? Maybe there are a couple of places where the set calls for a song in a certain key to be contiguous with other songs firmly in the set... For example, fans can vote for Send Her My Love, Sweet & Simple or Opened the Door. A video monitor could show the current state of voting via a bar chart, or something.
I've not seen this done. Know of anyone who offers fans the ability to vote for songs to be inserted in a set list?