The radiator sits close to the front bumper though, and the piping runs down closer to the middle of the car after it comes out of the front bumper. So the fluid shouldn't leak to the area behind the wheel.
Check out the power steering unit and brake distributor as well? That area has only got those two and windshield fluid i think
Agree with Zing, that's not a typical location for antifreeze.
What color is the fluid? Initially from the pics I thought it was green, but it almost looks blue. That would likely be windshield washer fluid.
Here are some things you can do:
Check your coolant level. If it's not low, good chance this leak isn't antifreeze.
Jack up the car and take off the wheel. Is there fluid anywhere else, like near a brake line? That's another fluid that could be blue.
Add some water to your windshield tank and see if it pees it out. Based on the location of the leak and if it's blue fluid, I would bet windshield washer tank. You're in Texas and it's been cold lately. Maybe your fluid froze and cracked the tank.
There is a connector for the headlight washers inside the front part of the fender liner, right about where your drip shows. The connector is disconnected when removing the front bumper. Might want to check that as well.