No problem with waiting to evaporate, it's not going anywhere. If you accidentally pulled some of the base, you're definitely going to want to do a sodium carbonate wash on that. I would let your naptha evaporate some (so that it's back up to room temperature) throw in a pinch of sodium carbonate, swirl for a minute or two, and run through a coffee filter.
If you put a lighter to a spoon with naptha in it, the naptha will ignite. Just let them air dry, maybe with a fan over it.
PK Dick is to LSD as HP Lovecraft is to Mushrooms