Fluid leak-weird place

[w155jmh]

OK, I just posted how I've had no problems for 80000 mi plus, now tonight I discovered a strange leak. I first noticed it just in front of the left rear wheel and traced it to the front of the car. The entire molding on the bottom of the driver's side is coated with it. From the color it looks like the Dex-Cool coolant but it's dark out right now so I can't tell for sure. I looked under the hood and underneath as best I could but couldn't find anything--the driver's side is blocked by the air intake, washer reservoir, fuses, etc and it's hard to see behind there. It must be just inside the splash shield. The coolant reservoir is full. It's been dry for several days so I'm pretty sure it's not something I drove through. Any ideas before I go tearing something apart? 2001 Sunfire 2.2 Auto.