My airline knows I'm there. TSA knows I'm there.
But Cisco and anybody doing marketing? Not likely.
So, if you were in line and someone came up and said "we're doing this mandatory customer survey, we just need you to fill out this form" you'd think it was OK if a TSA agent was standing there to ensure you filled it out? This is about the equivalent for most people.
This crosses the line from me being in a place I need to be, and a private company having access to information they didn't have otherwise. Nobody from Cisco would have previously been in the loop, and except for this special case of a cell phone, there is no way they'd ever know -- it's not like the TSA makes a habit of letting marketers know this shit.
This is why I won't have a cell phone with a data plan, and don't leave wifi on.
But people don't have much of a choice but to be in the security line. Do you think this would be different from putting cameras and other trackers in the bathroom? Because I don't.
Except for official purposes required by law, I think we should have a reasonable expectation of privacy in places like this. It's not like the other people in line with you have any real way of knowing and transmitting your identity.