You can't use cash ...

.
... at a junk dealer?

“… Anyone, other than a non-profit entity, who buys, sells, trades in or otherwise acquires or disposes of junk or used or secondhand property more frequently than once per month from any other person, other than a non-profit entity, shall be deemed as being in the business of a secondhand dealer. ” The law then states that “A secondhand dealer shall not enter into any cash transactions in payment for the purchase of junk or used or secondhand property. Payment shall be made in the form of check, electronic transfers, or money order issued to the seller of the junk or used or secondhand property…”

I could almost see "junk dealer's" falling over themselves to test this one ...

pm