I dont think there should be any penalty. I forfeit games all the time. For example lag screws up my score, 3-4 putts because putting suxs, lag, and putting suxs.
I could be doing great the lag happens or putting screws up, sure I am going to drop it and play again. oh did I mention putting suxs? or I should say my putting suxs :) game would be off the chain if I could get a handle on putting.