Yeah, I've gone the opposite way on my way back from Denver in May of last year. The Independence, MO SC is in the parking lot of the Bass Pro shop. That one was easy enough to get to...but out of the way enough that there was no issue with being ICE'd by anyone. In fact when I was there I was the only Tesla using the SC.
My next stop was in Columbia, MO. Again easy enough to find. I was the only Tesla there. No issues with being ICE'd at all again. After that I stopped in St. Charles, MO. Again I was the only car there as you can see from the photo below. It's rather well marked so you don't have to worry about getting ICE'd at this one either.
I skipped the Springfield, IL SC and just stopped in Normal, IL. My daughter lives there so I stopped in to see here and stayed the night. The Normal, SC is a bit tricky to find as it is on the 2nd or 3rd floor of a parking garage. It's also the only place I've ever "paid" to charge my car as I got hit with a $1.00 charger for parking there.

Which in a sense was poor planning on my part as the first hour is free and had I left just a few minutes earlier I would not have been charged anything for parking. There's quite a bit within walking distance of Normal though so it's a nice little town to stop in...but it's not as close to the highway as most SC's are. There were actually several other Tesla's at this place, but again no worries of being ICE'd. This one is only 4 stalls though, so you run the risk of getting a slow charge if you're next to another car there. This one was built in 2013, back before they were making them 10 and 12 stalls wide.
My last stop was just outside Chicago n Country Club Hills. 8 stalls, down the road a bit from a McDonald's. Which was really the only thing worth walking to. There was another Tesla there and i talked with the owners who also walked over to the McD's. Nice folks. Eight stalls at this place. It's out of the way enough that you wouldn't have to worry about getting ICE'd here either. Although you might not even stop there if you're leaving from Chicago.
I generally like to drive for 2 hours and then take a 20 minute break...which is easy to do with my 90D, and the SC spacing along this route works well for that also. All in all it was a pretty easy journey, and you shouldn't have any issues. Normal, IL is the only "out of the way" SC on the route.