re-reading your original post, the overheat episode wasn't long enough or hot enough to do anything bad--this is why temp guages wuz invented, so observant droivas don't cook they new cars before due time.
now when a 2.5 overheats so bad the motor starts chugging/bucking, and when you stop and try to restart the dam thing is seized up solid.... then you got a plobrem! BTDT.