I estimated 180 miles to Gettysburg, 10 mpg in my 2000 Excursion diesel, and traffic snarls that are common. I agree estimates aren’t science, but my point was the cost of the trip vs the cost of the permit.Holy jeez! What are you driving and are you going to Scranton to get your permit? Even Bowie to York and back is only 160 miles round trip (and there are places closer than York you could be doing it I am pretty sure). That's 4.5 miles per gallon of diesel or 6mpg of gas at today's pump costs (as high as they are). Care about the planet or not, I think you need to find a 2nd cheap vehicle that gets better than 4.5-6mpg.