Feel bad about this
My coworker left early from work today to start his vacation, and shortly after he left the office he called me and told me that some guy had locked him into the rack. I got out there and realized he was right. My friends bike was between the other bike and the end of the rack, and my friend's cranks were perpendicular to the ground in such a way that the left pedal was above the other bike's chain stay and the right pedal was below the bar of the rack. We couldn't lift the other bike up because my friend's pedal blocked its chain stay. We couldn't lift my friend's bike because his pedal got caught on the rack. We couldn't move the other bike away because there was no room left in the U-bolt.
The easiest solution would've been to take the pedal off. I went around the corner to the nearest bike shop and asked if I could borrow a pedal wrench (offered to leave my wallet or whatever he'd want). He said no, and I wasn't going to spend $25 on the same Park pedal wrench that I have at home.
So we ended up having to take the other bike's back wheel off as well as my friend's back wheel to get his bike out. I had a multi-tool in my pocket that made this possible. We finally got the bike free, but I was unfortunately unable to get the other guys wheel back on with it locked to the rack. We left him a note and hoped he had the right tool.
So, I feel bad about taking apart this other person's bike. Was I wrong to do so? What should've I done instead?
On a side note, it was disconcerting to me that so many people on smoke breaks saw my friend and I very obviously messing around with tools and locked-up bikes and said nothing.