Ingress Mitigation - Cox guy snooping around the property, unasked.

For the second time in the last five years, a Cox truck guy was found wandering around the property, unasked, because he suspected "ingress mitigation" leaks were occurring, which in his opinion, or Cox's (you choose), a possible RF leak from a coax drop in our house was slowing down the neighborhood.

Seriously?  And then he added guys like him just drive around all day, looking for stray RF.

Seriously again?  This happened about five years ago - so we went along for the ride, someone came out, thought they 'may' have found the suspected line, tagged it in our external house cable box, and then left, never to be heard of again, until this guy showed up.

I then said "do you want to come in and try and trace the line (https://www.amazon.com/gp/product/B076DP1534/ref=ox_sc_saved_title_9?smid=ATVPDKIKX0DER&psc=1),

to which he replied "I don't have the tools for that".

Then WTF are you doing on the property?  Stunned.

Anyone else ever have this happen to you, and if so, what was done to rectify the problem so they aren't found lurking in the garden again....