Hey Flip, it is only water and it wouldn't of been deep enough to drown in.
In some of the photos of your truck it looks like it has windscreen wipers so are they there to just add weight to the cab. I have noticed looking at alot of photos of rod runs over your summer months that alot of people don't worry about wipers on their rods, that is something one couldn't get away with down here as we can have all four seasons in not only one day but more like every 2 to 4 hours at times.
Now that it is your fall season, (autumn) get back out in that workshop so that we can see some progress on your boattail.