I had a very odd thing happen yesterday. I wanted to get an oil change at Walmart. The service woman asked for my phone number and I said I don't give it out. She said how will you know your vehicle is ready. I said I'm waiting on it. After a strange look she says well we can't service any vehicle without a valid phone number. Huh? I ask why she needs my phone number and she says to notify you when your vehicle is ready. Then I said I'm going to wait on it. Then she says sorry, no phone number no oil change. Really? I looked around to make sure I was not on a hidden camera tv show. Rather then try to reason with her I ended up driving directly across the street to a quick oil change place that was the same price after $5 coupon. Maybe the Walmart computer needs a phone number and/or she did not know how to bypass it on the computer?