How does one use a Fedex Self Service station?

I have to mail a broken Kindle back to Amazon (yeah, I slipped 3 different times and landed on it every time and it broke, but I got a new one for free!)

Anyway, I digress. I need to ship it via Fedex because they have tracking numbers, which I need to get so Amazon will refund the shipping cost!

The closest mailing place is a Fedex self-serve station, but it’s a mile away. Has anyone used any of these? My package is about 1.5 pounds. I’ve never used one of these before and I have NO idea how to go about doing it.

Are you able to pay at the station and get a tracking number as well for the package?