Thanks all! I'm thinking it foamed out that first burning smell and hopefully no damage. This is what it looked like over filled. The manual says 3/4" on the dipstick for every pint and they put 2 quarts=4 pints in so my guess is it was right where it should have been before they added anything.
Previous checks had alot more bubbles on the stick.
We took out 2 pints yesterday and will check it again today. Because we are not mechanics it took us hours to do this and it got dark then below freezing so we had to give up for the evening.