Dallas BBQ: dry ribs spices, and what's in yellow rice?
Haven't eaten at Dallas in ages, so I won't speak to the ribs. As to the yellow rice, that's most commonly produced either with annatto seeds, or turmeric (frequently +cumin). Couldn't say which they use, only that true saffron is totally improbable in a restaurant at this price point, and curry powder is highly unlikely in a BBQ joint.
Hopefully Dallas BBQ will respond to your email.