Jack had put his over coat in the back, soon driving them all to Torchwood where he felt safer if they were all them. He had even used his phone since he would have to get Arwen a replacement. The ride was indeed quiet, even Arwen had nothing to say since she was shivering a little which was rather odd but both their sakes, Jack had turned on the car heater to keep them both warm. 
Arriving at base, Jack got out, grabbing his coat as well before heading inside with Arwen and the Doctor. Jack lead them to the main hub of the base, Jack guiding Arwen to his office where his room was connected, giving her some spare clothes that was lelt incase she had ever come to stay the night. Jack gave her a towel as well as himself, leaving his room with the door shut so she could change. He decided to change in the office for he changed faster than her. 
Once changed Jack had left the towel on his head for when Arwen came back in a change of clothes such as a white button up (not tucked in), black jeans and Tshoes. Her hair was somewhat dry and would let air do the rest. She went to the little drink bar to make them a few drinks. Harkness looked over to the Doctor and motioned him over. Moving over to his wet over coat and pulled out Arwen's now dead phone and a familiar sonic screwdriver. He held it out for the Doctor to see.