If I were you SuckerPunch, I would use this opportunity to imagine a WHOLE new dream scene, away from your bed and room.

And technically it's not Sleep Paralysis that you were experiencing, rather REM Atonia. Often times as we are drifting off to sleep, we become temporarily aware of the body's natural state of atonia in this stage of sleep. However, when you can't move at all for seemingly long periods of time like you mentioned, it's because this feeling bled into your lucid dream. If you are in a dream, and aware you are dreaming like you mentioned you were in this case, then you CAN get up and move. You just need to mentally detach your dream self from the idea of your sleeping body.

I get alot of LDs that start with me being in my room and in my bed. It can be tricky to remind yourself once the LD starts, that you are now in your dream body. Any real life restraints are in your sleeping body and totally separate from the dream that you are currently experiencing in your mind, even though they do sometimes bleed through. Try to remember that next time you fall asleep on your back.

I really hope I explained this well. I hear of this type of thing alot and have experienced it frequently myself. It wasn't until I made that mental separation that I was able to push forward from it.