[Jstylezzz]

I think the reason the /exit command doesn't work is because you're not in range of the coordinates in the IsPlayerInRangeOfPoint function..
Try to resave the coords, adding them into the command again and increasing the range a little.
For text above the pickup, use Create3DTextLabel, or CreateDynamic3DTextLabel if you use a streamer.
And next time, you can put pawn code between pawn tags > [pawn]