While driving home from work on Friday, I noticed that my 5MT was whining and just before I got home, it jumped out of 5th gear. I pulled into a neighbor's drive and called a buddy to come over to help me check it out. Saturday afternoon we pulled it up on ramps and found that the drain plug for the transmission was gone! The car has 72,000 miles on it and the dealer serviced the transmission at 64,000 miles. I have to go out of town first thing Monday morning and will be calling the dealer from the airport in Atlanta to have it towed in. I am assuming that the tech did not torque the plug correctly and will press this issue. Am I justified in also asking for a warranty on this transmission since it was driven without fluid?