My windshield wipers stopped working while I was driving. When I turn on the wipers I can hear the wiper motor operating rhythmically, but neither wiper moves. Does this sound like an expensive or unusual repair on a Ford Escort?

Fortunately I was close to home when it happened, but we’re expecting rain for the next several days. Tomorrow there is supposed to be a sunny break but I’m really worried that they (the dealership) might not be able to fix the problem right away, leaving me with a car I can’t drive to work next week… More worried about having no drivable car than about the money…?