OpenVPN (as a client) does not show up in WAN interface traffic.

[Maksimka]

I'm running an openvpn client on my firewall, but the traffic going over the openvpn doesn't show up in the WAN traffic graph.  I can be pulling 10megabits over the openvpn, but it'll only show if I look at the openvpn interface traffic graph.  When I do traffic shaping, i want to give all the openvpn traffic low priority, but it avoids all queues (even default) so even my high priority traffic will get drops since the openvpn traffic bypasses the shaper.  Is it possible I have something screwed up in my firewall, or is this by design?