Ignorance is being so self centered, self rightous, and self absorbed that you forget that some people don't know there is a difference between a humane society and a shelter. Therefor, it is very easy for people to unwittingly confuse the two.
Tri-County makes you sign a contract stating that if you can't keep the animal any longer than you will return it to them. How many people would willingly return an animal there knowing how slim the owner give ups chances of staying there for more than a day are? Heck, the front desk people even tell you when you go to turn in the dog that the chances are slim of them staying much longer!
Do I think this person was stupid for adopting an animal that she didn't have time for? Yes. Do I think if she adopted from a Humane Society and not a Shelter, she should return it? Yes. Do I think if she got it from Tri-County she is doing the right thing? Well, she should charge something for the animal to help weed out those that are just looking for a free pet but she is probably saving this dogs life by not returning it.
Remember, education not condemnation.