I got some good news today. I found out there is a security guard overnight at my campus, which means I can leave my car there and do a "one-way commute." The campus is somewhat isolated and I was worried my car wouldn't be safe there but he said others have left their cars overnight for various reasons and in the two years he's been there, there has never been a problem. He's a cyclist, too, and I think he'll make a point of keeping an eye on my car.
So when the fall semester begins (August 29) I'll be doing the whole 17 miles -- one leg at a time!
I am having so much FUN riding now! And I can tell that a little less strain on my cardiovascular system is allowing me to increase the use of my muscles -- for the first time since I started cycling in March, I actually have some sore muscles!