If it is the coolant or oil on the floor, don't start it without either in the vehicle. If it is coolant, maybe it wet the spark plug wire or plugs themselves making it run funny....since you say it runs ok now.
If it is coolant on the floor, it won't be slick like oil, and your radiator will be empty, you probably have a bad water hose. Sometimes, when it is cool of course, you can squeeze the hose or move them, use a flash light and look for tears or cracks (especially on the ends or near hose clamps) but for now that is what seems most likely.
When vehicle was on, any unusual smoke out of the rear tail pipe? if so, was it white or black? if not then things are looking better.
Wait for your next info. to see