I received a simple oil change in Delaware and the...

I received a simple oil change in Delaware and the tech that worked on my car did not replace the drain plug the proper way. My parents live in Cambridge Md and i travel back and forth often. On this specific trip my engine decided to seize up due to the lack of oil in my engine. I was stuck in Cambridge and no way of getting home, I had to have my best Friend drive to pick me up. when my parents mechanic in Cambridge diagnosed the truck and informed me I needed a new engine I was shocked due to the fact my motor only had 70K miles on it and was maintained regularly, with no prior issues. I was told by the manager at the pep boys on kirkwood hwy in Wilmington de, that if i would like my car fixed by them they would have to get the car in their possession which seems ridiculous because they cant manage an oil change let alone the thought of replacing my motor. The Mechanic is preparing me a letter with everything that he has found and Diagnosis, he is also taking many pictures. Im a hard working guy. I save my money and i bust my ass. i don't like being played with and not having my many phone calls returned. my next step is going to the news and getting a lawyer, a simple task like an oil change should have been done properly and there is no reason for me to have to replace a motor in my truck. Hope to hear form someone, and soon!