I had a very similar situation happen to me and I was paranoid of the mold and unsanitary issues. I caught my mistake quickly (within a few seconds) and avoided a big spill. I mopped up the water, cleaned the entire area with a bleach cleaner and had the fan blowing for several days. It also helped that it was summer time and the sunny 80*F days hopefully helped dry things out. I continued to check under the cabinets, sink and under the tub through the plumbing access door to make sure everything was alright. Like already mentioned, since it was a one time spill and you got the water up quickly, you should be ok, but I would continue to keep an eye on the area if you can.