Hello, I'm Dr. Deb and will do my best to help you today.
I'm sorry for this concern for your cat. It sounds as if she ate something noxious or really bad tasting...some plant or another, perhaps...which is responsible for her behavior.
Certain plants not only can cause drooling and/or vomiting but they can also cause altered behavior.
You did exactly what I would have suggested in this situation which was to rinse out her mouth. You'll want to examine her mouth and gums in a few hours and look for any redness or irritated areas which may develop.
Putting her in a carrier was wise move as well which, hopefully, will give her an opportunity to settle down.
I might advise over the counter Pepcid AC at a dose of 1/4th of a 10 mg tablet twice a day which may help with any residual drooling or nausea issues.
I wouldn't feed her for a few hours; just give everything a chance to settle down.
It's possible that she'll develop diarrhea in 12-24 hours; if that should happen, then I'd feed her boiled chicken for a few days which should resolve the problem.
More than likely, she'll be just fine in a few hours if not sooner but if she continues to remain agitated and/or other signs such as trembling/twitching develop, then a vet visit would be prudent.
I hope this helps. Deb