R U kidding me?

Yesterday my  brother in law asked if  I could pick up his kids from school and bring them to the daycare with me (my bro in law runs the daycare) So today I go to their school and get there about 2:45 and they get out at 3:10 So me and Constance were listening to the radio and I wanted to roll down the window to get some fresh air and the window would not roll down.. So I tried to start the engine and nothing happened.  It would just make a pfft pfft noise. GREAT!! So my brother in law called his mother in law who does not live far away to have her come rescue us. We got back home and I was hoping that my in laws van was in the garage so I could take it to work and still get in  a couple of hours at work but it was not there.  So yea.. I had to lock up the van and just leave it at the school and hope that I don't get towed before I can get someone over there to get it.  I really hope that it will be an easy not too expensive fix.