The above information is out of date. There is an app on Google Play called Android Lost
that advertises that it can be installed 'after the fact', i.e., once the phone is lost. I don't know how well/if it works, but you might give it a try.
The Android Device managerby Google might also be available to the user
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.