Water drip in passenger floorboard.

Was hand washing my 14 Tacoma this morning and when I was finished I noticed a puddle of water on the passenger floor matte (rubber) before I started the truck, went to get some lunch noticed a few more drips. After lunch I pulled up the carpet it was a little wet underneath, pulled the cabin filter it too was a little wet at the front edge but that was it. Drove down to get a new cab filter, no more drops of water. There were a few leafs under the hood above firewall, but nothing crazy.
I’ve hand washed the truck about 4 times (had the truck for about 2 months) and this is the first time it’s happened.
I had a 4runner a few years ago with the a/c drain issue, no hissing or water sound behind the dash.

Anyone have this happen? Or a solution?

 

Could be a windshield leak, plugged A/C condensation drain, or a leaky heater core.