Since you don't know what else could have been in anything she ingested, I would wake her often, be sure she is capable of being roused and check her frequently today. At any sign of lack of appetite, N or V, or change in habits, breathing, coughing, or behavior, I'd have her at the vet clinic ASAP.
Dogs that are highly anxious or very aroused by something can accumulate vast amounts of very viscous saliva in their mouth and it could have been that due to the bath, though you describe it as more as mucus so that is a puzzle. But don't assume she's okay because she is sleeping unless you can easily rouse her and she behaves and looks absolutely normally.
__________________  Jeanie and Tibbe One must do the best one can. You may get some marks for a very imperfect answer: you will certainly get none for leaving the question alone. C. S. Lewis |