Rockford
I live in Rockford and there are a lot of hotels right at the State Street (Business Hwy 20) exit, which is after the big curve North. Red Roof Inn is right here and has a big parking lot. I think there’s a Motel 6 right there too - not like I’ve lived here all my life or anything… No toll to get on and off here.
Outside of that, you’ll really have to go to Janesville to find much. I think there might be one or two at the Beloit exit where I90 and I43 meet but not sure on that.