I think you got hit by something other than Panda. Something useful to check in Google Analytics:
Only view traffic for new visitors
This gives you the best sense of how your site is performing without polluting the stats with data from your friends and family or your own traffic.
I see you've added the delivery brand association to your site as I recommended which is awesome - should help with your conversion and bounce rates. I still think you need to improve the image you have at the top. That's got to be hurting your bounce rate.