lots all my tranny fluid

I have a 727 and was backing out my driveway the other day when I saw smoke and a trail of fluid on the ground in front of me. I tried to get the car back up into the garage and only made it half way before it wouldn't engage anymore. Quickly turned it off and pushed it the rest of the way in. It looks like a hose disconnected. My question is though, since apparently the entire transmission peed all over my driveway until it was empty, could trying to drive it back in for those few seconds have caused any serious damage? We're talking like maybe 10 seconds from the time I noticed it leaking until I turned it off after it stopped moving.