We are leaving for Disney in 8 days!!! Whoo hoo! This is the first time I will be flying since I started using Byetta. It comes in a pen that I screw needles onto to inject. I'd like to pack my medication in my carry on, so it doesn't get lost. We are flying Southwest, and I've searched their site and the TSA site, but have found no information about traveling with sharps. Will I get through security with pen needles in my purse?