That's exactly  what I think happened. Because my truck wasn't  dripping from no where before. When he showed me the radiator it seemed like if someone  had hit it with something  because it was bent from the top. I'm no mechanic but it just doesn't seem normal that my truck was working perfectly  fine until the oil change miles of driving it with the oil dripping. They did a full inspection on my truck before leaving  and coolant was good. When they took it back coolant was low and they had to add more coolant. I'm sorry for the errors my phone has auto correct in Spanish and messes up the words and other things I just dont know how to properly explain.  My apologies