Have a friendly dealer hold them at his table or in the security room and then pick them up when you are ready to leave for home.
If staying at a larger hotel, most have safe deposit boxes available besides your room safe. These intern are kept inside the hotel's cashiering operation. Anything of real value belongs there.
I do plan on attending Sam. Where I'll stay is still up in the air. Definitely have to have a meeting this year.
I'll PM you my cell phone number before hand. I'm staying at the Rosen Plaza, adjacent to the convention site. They have an enclosed walk way between the two buildings.
Hope I get to see you both at the show. Some of the guys that do imaging will also keep your coins safe if they are doing work for you. Just an option.