On Team [REDACTED]'s robot the fork lift arms do come off. You can see one of them being removed when it gets a mock inspection here.
http://wp.me/p5y54b-21
As far as how the transport dimensions will be checked/inforced this season I wish I could give an answer but I was not able to attend LRI training this season so I have to wait until all of the documents are posted. In the mean time maybe Big Al or one of the LRI's who attended training can answer that question.