After assessing the situation this is what I did with one caveat: as I started to walk home with a bike in each hand I realized that doing so in cleats was going to be very uncomfortable. So, I took them off, attached them to the handlebars and walked home in my socks. I figured if I ended up not keeping it and selling it off I could by a new pair of socks if needed

I had another similar situation maybe two years ago although I was about 3 miles away from home at the time. There was no sign on the bike (just in the front yard with some other stuff) but I figured since I was so close to home I'd just hop in the car and go get it. Unfortunately in the short time it took me to return the bike was gone


Epilogue: I cleaned the RB-3 up, replaced all cable & housings, repacked the headset & BB and replaced the tires & original white vinyl tape. I rode it around town for a while but the bike just doesn't fit me great. I still have it but I will likely find a home for it one way or another. On the plus side at least I didn't need to buy new socks!