95 Windstar Transmission Lock Up

We have just returned from a family camping trip and we towed a very small tent trailer for the first time(100 miles-total). When I went to restart and move the van a few minutes later It wouldn't shift out of park. Should I call my bank manager right away to arrange a $2,000 loan?

On the trip the van did not overheat, no indicator lights came on and the tranny fluid looks clean and new.