I've never heard of Spidermites causing leaves to be deformed. It leaves get white spots and leaves fall off and then comes the webs.

It is mor likely that your plants have a disease. Do your leaves have dark brown spots on the leaves. Look at the link below and see if maybe it matches what you are seeing

Here is a link that might be useful: tomato spotted leaf virus

Thanks for the reply. It doesn't look like the picture in the pdf, but the article does state leaves can become deformed. I ended up throwing them out because I don't want it to spread. I wish I knew exactly what disease or pest. The last two years the impatiens were beautiful but the previous fall they developed the same problem.