Transmission issues: Car got stuck, now seems fine...

[C(-)ris]

If it has a leak it probably gets worse as the transmission heats up. Take it for another really long drive and it will probably all leak out again. Probably going to have to take it to a shop and find out where it is leaking from. If you are lucky it is an easy to get to seal...unlucky and it could be a crack in the housing or a pump. A reputable transmission shop should be able to find the leak and advise on if it is fixable or not.