xjtcompliance responded that there is nothing in the contract since it was an illegal assignment that I accepted, so it will probably get paid as if it was part of the ARC assignment (which if I remember right is 4 hours OR the value of the trip, which ever is greater. The trip is worth 2:41 plus a 1:51 DH). Though honestly I don't even know how to read the Pay Register or Master Schedule screens in CCS when it comes to pay, so even if they are crediting me for the ARC and the pairing I wouldn't know it.
I'll have to catch someone I know in the crew room who can explain those screens for me. None of the numbers I see add up to either of the possible outcomes right now

. *edit* CS said (after less than a minute on hold woot!) that they think I'll get paid for both but this is how they "have to" do it in this scenario, but to check with payroll.