They could just cut the bulbous bow part off, and sail the ship out of the canal without it. Ships have watertight bulkheads in case the bow is breached. Cut

They could just cut the bulbous bow part off, and sail the ship out of the canal without it. Ships have watertight bulkheads in case the bow is breached. Cut everything they can from the inside, seal the bulkhead, then cut the outer hull from the outside, and bob's your uncle. Then they could leave the bow embedded there as a reminder to others not to f* up.