It is pretty easy to determine if the bike actually "consumed" the missing oil or if it is just trapped in the sump and not being returned to the oil pan. Any Harley dealership can take care of warranty work, you don't have to travel to your selling dealer to have this diagnosed unless you just want to do so. If time is of the essence, I'd suggest finding a local dealership to at least do the diagnostics per the Harley bulletin so you will know what kind of problem you really have. If it is sumping, they could easily and quickly add the oil pump housing and seal Harley started installing on the 2019's in production. That seems to have helped on many bikes, and perhaps it would at least let you make your scheduled trip. Just a thought.
Jerry