Sara, I've thought about how they paid for the car as well, but the real deal killer for Lois and Clark wouldn't be method of payment. In order to rent a car, they would have to produce their driver's license.
Well, I can think of a number of problems with that. First, they look different. If I remember correctly, a driver's license in 1966 was paper and had no picture.
Second, when they looked at the date of birth, Clark and Lois would be less than a year old. Definitely phony licenses.
So cash wouldn't help them.
gerry
