As I have come to understand since then, Hydraulic Lock occurs when a fluid gets into the combution chamber. From what the Honda Manager told me, enough oil had gotten into the cylinders to cause Hydraulic Lock. I'm guessing it blew a seal or gasket somewhere.
What I do know for a fact is the engine was a mess! I started it and the OIL light came on, and I shut it off and saw oil spewing out onto the ground.