Have you explored the limo options? I think this site even recommends a limo company (and Pete very carefully checks out any company that advertises here to make sure they meet his very high standards).
It's been awhile since I compared prices, but last time I looked the limo service was comparable in cost to Mears, if not cheaper than Mears - plus the limo service had the added advantage of taking me directly to the resort (as compared to potentially stopping at a couple of other resorts with Mears to drop people off) and they usually offer a stop at the grocery store.
Our coupons usually hit the trash as soon as the come out of the envelope; maybe someone else here has one they can send you.
And, I just looked - here's the link to the web site that is recommended:
http://www.fltours.com/ - they even have a luxery van that seats 10 people for something like $105 round trip (if I read the rates correctly).
