If you don't have a ski pass you can make one pretty easily.
If you have a coupe, you can pry out the window enough to get some hook on the door handle and pull it open.
I don't know if you can fold down seats from the trunk if you do have split, folding seats.
Making a skipass isn't a big deal...search for it.
As desperate as this sounds, in comedy, 'likes' and 'views,' 'friends,' and 'retweets' really help. If I've ever helped you, please help me by friending, liking, viewing, and retweeting. It makes others think I have a following...it'll take you a minute or less. If you could, I'd really appreciate it!
A recent set--NSFW audio: https://youtu.be/_dcxcZfD6dg
Mangofy your E46!