No need to get to the dealer, unless you wish to replace the entire section of hard vacuum line. All you need for now is your closest AutoZonePepBoysKragenCarQuestpartshouse. Buy a couple feet of small diameter rubber vacuum line, probably 1/4" inside diameter. You will use approximately 3" of it to repair this break. Use the remaining 2'9" to replace all of the vacumm connector you might need to (the connector at the vacuum modulator comes to mind here).
The connectors will deplete your purchase a couple inches at a time and you'll probably have some left over to hang on the wall when you need it again.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.