I'm still new to GSX so I may be missing something obvious:
At smaller airports with apron parking you often follow an arc onto the apron, deboard, board, startup then continue following the arc forwards to the taxiway to depart. i.e you don't park 'nose-in', but part-way through a turn back towards the taxiway.
This means you don't need pushback. But I find I'm surrounded by GSX ground service vehicles! Is there a way to clear them so I can move off forwards?