Anyway, clearly Blaine’s brother was driving the truck.

lol my original guess...Blaine himself, but this is...only...
case, then the episode will be focused on Anderson Cooper angsting over running into someone and Quinn will only be...
Ooohhh actually that could make sense. That’d be too “OMG LOL DERP COINCIDENCE WHAT A COWINKY DINK.” So that’s exactly...
That’s a good explanation xD