Clutch issue E36 M3

I didn’t open the bleeder to relieve the pressure prior to removing the engine/transmission. My wife got in the car to steer it, when I pushed it out of the garage, she pressed the clutch without the transmission being in the car. The piston/rod shot out of the slave, but did not leak any fluid. The rod is in the divot of the fork. I replaced the clutch with a Sachs OEM replacement. The pedal is stuck on the floor unless I pull it up using a lot of force.