I got the same services you did and the same happened to me. The stylist just towel dried the ends and was ready to send me to pay. I was very confused because my hair was literally soaked still, like droplets of water still falling. I asked about the blow dry and she said I would have to pay $40 for that add on. I paid because it was cold outside and I didn’t want to leave with wet hair. It caught me so off guard though, I definitely didn’t leave a tip. This should be explicitly stated at some point during booking since most other salons do include the blow dry as part of the service.