I knew last year I wasn't going to be a super fast strong rider - especially having to hang back with my wife who did zero - and i mean zero - training. I rolled into La Grange around 5pm. Last one on my team. Didn't care. Had a great time taking in the sites and see all the thousands of other riders I passed and that passed me. Some of the guys on my team were there by like 11-12, rocketing at 20+ mph. It's not a race. All they did was power through because hey we gotta go fast that's what cycling is right? No. The countryside is beautiful, and the weather was great. I enjoyed being outside and seeing it go by slowly on my bike.
Day 2, we rolled across the finish line around 4:15pm. I wanted to hang out and check out the festivities, but we jumped on the buses back because we heard it was the last bus or something (maybe BS).
Enjoy the experience! You're riding your bike 150 miles - take it all in.