No established bus service but if you check out some of the local clubs they've always got some day trips running. The Ski Club of Washington is running some WISP & Roundtop overnighters this month as well as $60 day trips to Whitetail. Check out the calendar web page
. I'm sure you can find some similar offerings at some other local clubs. I'm a DoD guy and our local ITT is offering a beginner's Whitetail dayski trip which includes roundtrip bus, lift tickets, rentals and group lesson for $60! You can't beat that with a stick.
The Snow Searchers ski club (NRL folks mostly but open to all) has a great trip to Seven Spring planned for 2/25 and Blue Knob for 3/3. Again you can see their schedule and contact info here.
There are actually about 9 ski clubs locally with tons of day trips available. It just means a few phone calls and/or e-mails to nail the right one down for your friend. Good luck!