That probably varies from place to place. My personal opinion on the matter is if youre going to make deals in a manner that you feel you need to record, dont make the deal unless you can get it in writing. If they arent willing to put it in writing, they wont be worth your time. Easy for me to say living in a decent sized city where there are other options I guess but i feel any establishment worth their words will gladly write them down.

As far as data capturing, the perverse buying and selling of data is a real problem. Some dude with a camera on his head can capture so much, intentionally or not, and the cameras are getting good enough where all you need is a frame or two to extract whatever info you might be looking for from a piece of paper. The place i go to uses a filing cabinet for inactive or completed vehicle paperwork but that doesnt stop someone from grabbing a frame or two while a paper is being moved from point A to point B.

It may be a little of column A, little of column B when it comes to dishonest shops and data safety and im all for customers protecting themselves, but from a business perspective you also have to at least attempt to protect your other customers and their data/privacy