Hey vdubber, maybe this is a good time to act "mysterious", and don't even acknowledge last night's texts/calls dealing with being pulled over. Instead, perhaps a text to her asking about d7's health, and if there is anything that you can do for your daughter.
Let W think what she will of what you were doing last night. Don't do this maliciously or with a mean-spirit, just deflect any questions by keeping the focus on your daughter.