I called ahead to see if I needed to have my coupon in hand for an oil change (I left it at home when leaving for work.) I was told no, they would just use it as a cell phone coupon. Cool! I come in and Allison was pretty abrasive checking me in. She said I had to have the coupon. I told her I called ahead, so she grumbled about making it a cell phone coupon. I wasn't asking for the moon and stars. Just a couple of bucks from the coupon I have in my drawer at home. Hopefully it was just a bad day. We all have them.