Please????

I visited Kate in Ohio a few months ago, and unfortunately, the book I was reading at the time ended up staying a little longer. (I left it on her floor -- oops!) Kate was nice enough to take my book to the UPS Store and ship it back to me. She was also nice enough to take a photo of this sign:


Please no Cell Phone useage while at the counter receiving services????

1. What's with all the question marks? (???)
2. Interesting alternative spelling of "usage."
3. Apparently the Cell Phone is now a proper noun.
4. Is the counter receiving services, or is the cell phone user?
5. The ultimate irony: Kate took the photo with her cell phone. Ha!