If you accept payment from a non-Federal source in violation of this part—

(a) You may be required, in addition to any other penalty provided by law and applicable regulations, to pay the general fund of the Treasury, an amount equal to any payment you accepted; and

(b) In the case of reimbursement under paragraph (a) of this section, you will not be entitled to any reimbursement from the Government for your travel expenses that the payment was intended to cover.