Of the suggestions, i kinda prefer Deutschland2007's, but it doesnt give a firm solution to the issue. You still have to have someone checking that section for cutting and keep a record of who it was and how many times etc, as well as decide whats acceptable as a mistake and whats pushing too hard knowing the consequences are soft at best (the situation that currently exists).
IMO Boothy's is more of a solution, however i cant help but think that corner is still quite tight/narrow. The physical room might be the same, but i get the feeling it'll feel rather claustraphobic (or however its spelt!) kinda like South City because there arent curbs you can hop and its effectively a locked in space, rather than open which it would be if the corner was actually designs in that shape. Theres probably equally tight places people still pass into, but i think the side by side in & out might see paint spread more liberally onto other cars than most corners.