I am not a vet, and am not sure what to watch for. But, I would keep an eye on her. Chances are she will be fine.
And, I am a little confused.... was your DH getting out of the shower or your dog?
Lastly, our dog used to get into the trash all the time. We invested (and I use this word because of the expense) in a Simple Human trash can with a step opening. It is wonderful. We have an 80 lb. dog... he cannot knock it over and he cannot get into it. Highly recommend it.