Something else to consider.
Take the clipless off, relax the fit a little, go with some slightly wider tires, and ride the one you have?
Ultimately, you should be happy on what you ride, but considering the circumstance and the level of butt hurt this might generate, taking your lessons to the store with your own money later might not be a bad decision.
I am a dad that bought his son an Allez a few years back, hoping to find some bonding time. My age, physical ailments, and his youth don't ride in the same group once he was on a road bike. He was doing great keeping up with me on a slick tire MTB.....He quickly got bored with the riding club scene and likely didn't touch his bike again for a couple of years. I took the initiative to take off the clipless pedals, I flipped his stem, and adjusted the post and seat position to slightly more relaxed....he takes it places on his own now, just to ride.