I have a DUI and my GPA dropped from a 3.70 to a 3.67 junior year.
The rejection was weird.
Sorry man, that's too bad. The GPA drop is insignificant but you never know how a DUI might affect things. Since Vandy is a small school that loves touting its students' accomplishments (All-American X, White House Internship Y, Fullbright Scholar Z...) your app may have been more tarnished here than anywhere else. That still doesn't explain schools like George Mason or Colorado, but good luck with the rest of your cycle. Hopefully better news is on its way!