OK, so it took me a few days to get to the sand part of the cleanup. So, I turned on the compressor and proceeded to try and rid the dash and anything else harboring sand inside the car of the mess. After all the blowing and vacuuming I started to put stuff back in the car and realized the floor mats were missing. I looked all through everything I removed from the car before I took it to the body shop and sure enough, there were no floor mats. My best guess is that when the were (ahem) vacuuming out the sand they removed the floor mats and must have forgot to place them back in the car. I can only hope nothing else if great importance ends up missing.