To Chicago or Not To Chicago Friday

I've been after the Espousa to go to Chicago this weekend. I simply want to get away. (She wants me to take a day off.) The question is whether to go down and spend Friday night or get up early Saturday morning and go. Pluses and minuses for each plan follow.

Friday Pluses
We're there and parked
Wonderful breakfast at Lou Mitchell's
Pleasure of eating more meals in Chicago
Walking Michigan Ave. at night (assuming it's clement)

Minuses
Additional cost
Going through Hotwire, not sure where we'd be staying
Simply may not wake up
Expense of eating more meals in Chicago
Very real potential of significant traffic aggravation

Saturday Pluses
No extra expense
Can still get to Lou Mitchell's
Potentially less traffic and travel aggravation
Park where I want

Minuses
We're not there yet
Miss walking Michigan Ave. at night (assuming it's clement)

I don't know which we'll do, but I will guarantee we'll be at Fogo de Chão Saturday evening!