I'm willing to bet she isn't that dumb.
I will admit that I ran a car out of gas once in the last 40 years: driving to Flagstaff AZ in a Prius there aren't many gas stations and I ignored the reserve light and the beep because I thought I could make it. Nope! 5 miles short. Maybe the 3000' grade I had to climb just before had some influence. However... never again. OTOH, that Prius that ran out of gas traveled several thousand miles over the years at over 90mph across the West, getting ~40mpg which works out to ~400 mile range. That right there is the entire argument, done.