Lynnelf, I did the same thing only in reverse. I went out in the garage to go somewhere in the golf cart. The garage door was open but I didn't notice that Mom had previously lowered the garage door a bit while she was puttering in the garage. I backed out at nearly full speed & . Put a dent in the door & scraped the back edge of the cart roof. I had a few choice words for my mother and felt stupid for not noticing the door wasn't all the way up. So, you're not alone.