SQ23 was dispatched with E402 (West Annapolis) and PM17 (Arnold) for a MVC on Rt.50(W) prior to Rowe Blvd., Annapolis. Fire Alarm had advised that multiple calls were received. The SQ arrived to find a single vehicle that appeared to have missed the access ramp and struck a guardrail. After further investigation, this was a property damage accident - no injuries. Units were in-service @ 13:07 hours.