Credit card fraud was really common in the 80 among "hacker" types.
I knew of several in Lake Tahoe that were high-school kids at the time in the late 80s - someohow managed to get credit cards and would order deliveries to "vacation homes" in lake tahoe where they knew the owners lived in the bay area and wouldnt be at the house - and would have things dropped off to the vacant houses to go get them.
Also, in 1980 - we had a payphone inside our home in Tahoe. I didnt know this was an odd thing to have until much later.