Yeah, the Burger King lot has pretty much become a municipal lot since they closed last year. In summer it got a lot of use by boaters using the boat launch in town.
You could probably also leave it at one of the lots at NCCC (North Country Community College) on the east side of town.
While you're here you should check out Blue Line Sporting Goods and Lake Placid Mountaineering (which just moved from Lake Placid to Saranac Lake) and give some business to our local businesses. Both are on Main Street in Saranac Lake.