Not to be a nervous nellie and at the risk of sounding overly presumptuous....
Be sure to really give the fork and head tube area a very thorough looking over, even if you're still using the stock alloy fork that came on your C'dale. You'll also want to give the handlebars a very good looking over, particularly at the clamp area. If in doubt about the bars, consider replacing them just to be on the safe side.
Beyond the immediate area of impact with the garage, pay particular attention to the lower weld joint at the head and down tube junction and to the fork's crown and lower legs since force of the impact with the garage meets the rack system and car at the rack's fork skewer and drop-outs. In most cases, if there's any damage beyond the shifters and handlebars it will be at the fork crown. Tubes like the ones on your C'dale used for the top, internal and down are pretty robust which is what makes checking the weld areas so important since that can sometimes be the weakest link in a robust frameset.