There should be the option to turn off toll roads.
You can send Garmin [not sure about Rand McNally] a question or suggestion about it, on their website. I did, when I wanted to ensure that the model I bought does NOT change the ETA time when entering a new time zone. Now I'm going to suggest they add an option to 'backtrack' the same route, because sometimes, I want to retrace the last 5 or 10 miles. MS Streets & Trips has the feature, I don't see why a GPS can't.