That sucks! At least it should fall onto the dealers responsibility. That a M or raptor engine?

Welp, got my boat back from the dealer (warranty work) recently and took it out to the lake for the first time this season. Started it up and checked the engine to find water dumping out the exhaust manifold on the starboard side. The freeze plug had popped out which seems to me they did not winterize my boat before the big freeze in January here in North Texas. 
 

My plan is to take it back to them (Tommy’s Lewisville) and have them check the block and the exhaust manifolds. Anything else I should be concerned about here?  Guess I’m wondering my recourse if they didn’t winterize it after all and I have engine damage. 

Ok thanks for the advice.

I found a video of the fumes if that helps.https://youtube.com/shorts/P5dM53fUkE0?si=hYDM9xagVuYgRNiI

Took our new boat out for the first time and after about two hours had the autobildge warning keep kicking on. Confirmed no water pumping out the sides.  Opened the floor hatch mid ship and only a small about of water. Manually turned on the bilge and nothing. Noted on the small screening where you turn on the bilge the sensor seemed to be indicating bilge off/on but not turning on. Stuck sensor? Thoughts? Thanks in advance! Hoping to avoid a trip to the dealer. 

Does anybody have a file for just the sunset?  I am making a new bracket for a new winch and figure I could cut the logo out into the supports using the CNC plasma table.