hey anyone...

my girlfriend has an 87 740 gl wagon and the car just decided not to start. she was driving along and pulled into the driveway and she was rushing and "simulaneously hit the brake and put the car in park at the same time" (i dont know if that would make a difference) and she turned it off and went inside and came back out no more than 15 minutes later and the car wouldnt start. what could be the problem here? the engine sounds like its turning over and there's plenty of gas? could the fuel lines or fuel filter just get clogged up that quickly and not feed the engine? she parks on kind of a shallow hill daily and has never experienced this problem before. she has about 187,000 miles on the car. any advice anyone could give would be grateful!