FROSTBURG, Md. — From the DCist mobile command center on I-68, we present to you our picks for stuff you should do this weekend. (Actually, we did this early this morning, we think we’ll be around Frostburg around lunchtime. But wouldn’t it be cool if we did have a mobile command center? C’mon Jake, can you spare a few pennies for that? We promise we won’t take it on any joyrides …) Anyhow, with Catherine…