Rockstar08

Well I'm taking the car in for the 55k mile service tomorrow. But on the drive home in stop and go traffic, the car felt like it was dragging in first gear and didn't want to go and then it drove to around 30mph before I came to a hault again and then it just stalled? It started right back up and then drove home fine. I just bought the car 3 weeks ago and the original owner replaced 2 coil packs recently but the dealer doesn't think that could be it, no check engine light came on either.

Anything I should tell the dealer tomorrow to look for, its going to Rusnak in Pasadena?

Thanks