The arrest list only shows arrests from the Fairfax County Police Department. If you're arrested in Fairfax by the state police/Sheriff's department it won't show up.
Also, the list does take a couple weeks to get up to date, depending on how fast the arresting officer puts in the paperwork.
So no, you won't show up here since it was Shenandoah. You CAN find yourself on the state court site however.
click:
http://208.210.219.132/vadistrict/select.jsp