Walgreens - Punctuation Fail!

Today I went to Walgreens pick up some medicine and buy some other necessities, and what do I see on the wall?  A company poster/advertisement that says "Walgreens can fill your prescription's and text you when they're ready."  What is wrong with this sentence?  If you don't know, you probably work for Walgreen's corporate marketing department.

I can't help noticing these things.  English major = grammar and punctuation police. 

I wonder if companies and other organizations are reducing their budgets by cutting out copy editor and proofreader jobs.  If they are, it shows.