What was Leslie 's answer to Ben 's proposal ?
He failed to turn Lot 42 into a new Paunch Burger restaurant when Leslie won over the city planning committee and got the Pawnee Commons park project approved , leading to him getting drunk and temporarily ruining Ben and Leslie 's impromptu on - site wedding ( after he was punched by Ron Swanson , both of them were thrown in jail but Ron was quickly released while Jamm was left to sober up in his cell , and the wedding took place at City Hall ) .