"I have found no regulation that covers the willful "sale" of chips or tokens by the casinos for carry-out by the patrons. But as we all know, they do it all the time, and the action is contrary to the "regulated" purpose of chips and tokens."

Not true. Re-read the regs.
"chips are for gaming use only"
Exchanging cash for chips on the tables or at the cage meets this regulated purpose.