Probably double-check with your center, but I would just pick up where I left off. Drink tons of water and know that it will be tough (mentally and physically) to get back on plan.
As far as being the "freak at the table," most people understand when others are trying to eat healthy. It's a totally socially acceptable thing now. When I eat out and order a grilled chicken salad, or salmon and veggies with no added oil, no one even blinks. You can even order a small steak with all trimmings and just don't eat what is not on plan. This is the rest of my life - if being skinny and healthy makes me a freak, break on the freak!
Debi in FoCo, Co