Passenger side footwell leak

So I've had my '01 Tacoma for a week now and I think it's a pretty killer machine, however, we had a shit-ton of rain here this weekend and it appears the truck has a bit of a leak. I think that what's happening is that water is pooling somewhere underneath the black plastic grille at the bottom of the windshield outside the truck. I would presume that this would have a drain somewhere, however, before I picked the truck up, Toyota did a full underbody and frame spray and I'm wondering if they may have plugged up a drainage pipe leading to it any pooling overflowing into the cab. It only seems to drip if it's being sitting for a while, (lot's of rain pooling) or when the cab rolls, sharp turns left or right, heavy braking or driving up hill (as if water is spilling over an edge and into the footwell) it also sounds as though it might be landing on the A/C compressor because I get a hissing noise from the water when I'm turning to the left...

Does anyone know of a location of drainage a hole in this instance?
I haven't taken anything apart to further investigate yet, it's been dry for a couple days now and nothing is leaking so...

Anyone?

 

Should I be able to see it from above or would it only be visible from beneath the truck? This sounds like it could be the issue given that I don't have a similar problem on the driver's side...

 

ok, I'll check into it tonight...
Just in case, do you have any idea where those plastic grilles drain out to?

 

to the insides of the front fenders? That's how it worked on my old Jetta...