Yuck. Of course it would be the wee hours of the morning. The only lucky part is it was warm enough to bath him outside. The last time Oban got it was January. I use Skunk Off, it works. When I washed my own clothing and towelling I put it in the laundry too. You are going to smell that in the house for weeks. We set many saucers of vinegar out to absorb the odour, not sure how much it helped but easy to do.
SKUNK-OFF®