There's no indication this ride is some kind of race or even pretends to be a race. There are no timed segments or any indication there are pace lines of any kind.
In one picture from the event there is someone with aero bars in the picture.
Also, since you can leave when you want in the first hour you can do so without being stuck in a group.
So I'm hopeful I can use aero bars (though I'll have to check to be sure)