OK... That's a better explanation than batman 72's... But the problem is how would they retrieve it from the impound?? They'd need a big truck and cranes etc!
Also, if they were to rebuild something like the pod... Wouldn't it just make more sense to build it from scratch as opposed to using twisted bits of metal?
It doesn't matter how it gets transported. Thats something you never have to show. A page of conversation and 30 seconds of footage would solve that. The point of how and when it gets moved is irrelevant.
I read in an interview a little while back that the Batpod was to be 'custom built for batman' and wasn't something they already had. I'll see if I can find the link.
Edit:
This isn't the link but its very interesting: