Bad as it was, it could have been worse. Back in Scotland I had a bike (CB350SG) that was left overnight in the University bike parking area. Someone (or some peple) came along and pushed it over and took a brick to the gas tank, denting it severly.....I found it the next day, gas leaking from the side, tank had a HUGE dent and mirrors bent, indictor cracked etc....its heartbreaking to see this happen.
good luck in getting yours running again. I filled the dent in the tank with some polyfilla type stuff and rode for another year or before selling it to some Greek guy who took it home with him (after buying a new tank for it!).
cheers
Andy