Hood hinge on 68 dart seems stuck open

My hood was off for a while and I put it on today. Went on great, but now can't shut it - stuck open. Didn't put any hood spacers on yet - wonder if that has something to do with it. What is the secret? Before I left I sprayed the hinge's with white grease and wd 40. Haven't tried to force it. Any ideas would be appreciated.