The idea about replacing the QR on the seat and wheels is not something I considered---thanks. I have plastic coated SST cable at work I can cut a length and put eyes on the ends, I'll look into the pick proof/resistant lock.
Now that I'm thinking about this, I'm not seeing any bike racks at any of the stores I normally shop at. It's a realization how UN-bike friendly Long Island is.
I guess wrapping it around the seat post is about the best way to store it on the bike.

Thank you all for the advice.