There looks like plenty of room to get through that gap. Failing that, you could have checked if it was unlocked (window is open) , let the handbrake off and rolled it forward a bit. As a last resort, give it a nudge with the other car then bugger off quickly! lol
How did they end up in the bike box? Perhaps roll the film back a bi? People who intentionally enter them piss me off..but I cannot see how this driver ended up in the box.
I saw this driver and his parking and driving was spot on!