Lois tried to fight the surge of discomfort at the 'promise/threat' that Thomas would think about what he wanted in return for answering her questions.
"Hey, within reason," she said firmly. "I'm not going to be doing anything too out there. But I suppose you know how to get in touch whenever you are ready to talk."
She was like a pitbull on a pantleg usually, but she knew when to let a source have time to breathe sometimes.
Not to mention that she still wasn't sure whether or not she believed that he was what he said he was. This would at least buy her time to possibly dig on her own and mull things over herself.