> Any recommendations on possible regulatory responses to the collection, processing and sale of human motion/activity data collected via WiFi and other RF Sensing?

Research your state's privacy laws and submit a cool and concise complaint to your regulators, e.g. attorney general, consumer protection bureaus, public utility commissions, et cetera. These offices are understaffed and overworked--there is a good chance they haven't noticed this.

If you want to throw cash at the problem, check if Xfinity is pulling this crap in Illinois. (Or another state with a a BIPA [1].) One could argue that one's radar cross section is biometric [1]. That opens up avenues for financing litigation.

Finally, always, call your electeds. U.S. Congressmen and Senators, yes, but also your state legislators. Put it on their radars. (Most offices will put a staffer on a novel issue if more than a couple people call in about it.) If you want to supercharge this effect, find a local party organisation (e.g. such and such town or county D/R committee or club), go to their meeting and try to get it on the agenda.

[1] https://en.wikipedia.org/wiki/Biometric_Information_Privacy_...