Check your maintenance log book that came with the car. It'll list everything that the dealer would do to your car. At 30k it's probably the service B. Involves oil change, oil filter, cabin filter, plus a few other check ups (probably extra stuff because it's an SRT). If you're pretty good with working on cars, you should be able to do almost all of it yourself for a lot less.

If not, $800 does sound absurd. I havn't had mine in for a service (have an NA though), but I've heard it should be more ~$300. (someone chime in whose taken theirs in).