If you have no more than 1 ppm FC loss overnight (with the SWCG off), your CC is at or near 0 and the water looks clear; you can let FC drift down. The complicating factor here is that we lost no FC last night but the SWCG was on so... we lost as much FC as the SWCG produced overnight.
If your FC is 14.5 or higher in the morning then we're done with the algae battle and you can let the FC drift down.
If you can't watch it tomorrow and your FC in the morning is 14.5 or below, add some bleach to get above 15 and turn on your SWCG. Run another FC / CC test when you get home and let's take it from there.