You'll probably be OK but you may want to check the dipstick to see if enough water got in the top of the valve cover to register. Maybe change it out if it did and/or dump some clean oil in the valve cover while sealing those holes for now. Maybe shoot some WD-40 in the exhaust/intake ports since it was developed by NASA for displacing water.
BTW, when you go to start it with everything back together pull the full pump relay and let it crank for a minute or 2. That way oil gets back to coating everything before it fires right up w/o lubrication.
Surprised you don't have everything plugged up on your engine down there? My brother lived in Coconut Grove and we visited him every year for 25 years. One night we went to a marina and I set my bottle of beer down for a few minutes. Ever have a 1 1/2" crawling palmitto bug in your mouth?? Doesn't take very long to spit out!