Can you make pie crust from cookie dough?
My recomendation would be to roll out the dough and pat it into the pie-plate and cook it with out any fillings (blind baking) you will probably need to poke holes into the bottom to keep it from bubbling up (docking).  After it is fully cooked pull it out and let it cool.  I would only use no-bake fillings in this, I don't think the cookie crust would react well to baking twice, maybe a french-silk type filling.