Well, enjoy your tour. If you’re going from Chicago to Rock Island, it’s likely as not you’ll be coming directly past Rochelle (unless you’ll be coming from the far south side). We’re at the intersection of interstates 88 and 39. I-88 is the Eisenhower xway coming out of Chicago past Oak Park, etc. It runs past Aurora, DeKalb, Rochelle on to the Quad Cities (Rock Island). I-39 runs North/South from Bloomington, and past Rochelle to Rockford, where it joins with I-90/94 and up on into Wisconsin.
If you leave from the far south side of Chicago, then I-80 is the better bet. It heads west past LaSalle/Peru then later heads north and passes I-88 just east of the Quad Cities.
Honk as you go by...
And prepare EXTRA LARGE margaritas. A Lutheran tradition that began years ago at the San Diego mission.