The tap is a good idea (whomever thought of it); turning it while lifting the pin__to the point it doesn't come out/lift higher__should suffice *enough* for the teeth to bite in, allowing you to remove it.
We're all on the edge of our chairs, so do us proud!
1957 Austin-Healey 100/6 Wine Red
1961 McCulloch R1 go-kart Screaming Yellow
1995///M3 Coupe Dakar Yellow Eurosport Twinscrew S/C
1999///M Rdstr Cosmos Black Eurosport Twinscrew S/C
1999///M Coupe Estoril Blue Eurosport Twinscrew S/C
2001///M Rdstr Steel Gray
2011 X5 35i Sport Deep Sea Blue/Cinnamon