#BikeDiary Searching online after I did this, apparently the problem is incredibly common. If you're somebody who's not mechanically inclined, take it to your dealer. But if you have some tools and elbow grease and mechanical know-how…apparently also take it to your dealer, because you'll bend the seat rails.
I took it to the dealer. They apologized profusely for not warning me about it. No biggie, but I did have to ride on my other bike's seat for a couple of days!