Well, I ended up hosing it off in the field, since the hose was able to reach. Then when I got to the garage, I used the pressure washer and a soap solution. Then the next day I was able to sneak some baking soda out of the kitchen and used the pressure washer soap setting to spray a soda mixture on, let it set for 8 hours, and used high pressure to wash it off. It should be OK now. I realized that the acid had seeped into the dashboard, so I popped off the steering wheel and did the soda and rinse inside there as well.
All is back to normal EXCEPT for the smoke. Since I did hear clunking when first cranking, but now runs smoothly but with smoke, I am going to assume I popped a ring. I don't know how many rings on each piston, but I ordered the service manual (now available on CD!!!). I am trying to locate a compression tester that has the correct adapter, and high enough PSI. None of the local autoparts stores have one. Any ideas on a source? I will also ask at the NH dealer when I pick up the service manual, hopefully Friday. Say, when I was searching on the internet for a compression tester, I also saw advertised a boroscope that will fit through the injector hole. Has anyone ever tried one before?
If the compression is OK, I won't worry and will wait to see if the smoke disipates. Otherwise, I will have to start making the big decisions - fix it myself, have the dealer fix it, make an insurance claim, eat it myself, etc.