So, I was vacuuming the SS today & noticed that under the pass. side floormat was wet, but not the whole floor-just under the glovebox & NOT where your feet rest when stretched out fully

I grabbed a white rag & soaked some of it up & it was a light pink, but since I'm sick, I couldn't smell much, but my wife thinks it's the heater core leaking

I'm praying that somehow it's a result of the Delta Sonic underbody car wash the car got on Sat., but what do u guys think :/ Thanx for the help & if it's the heater core, can I still drive it & not cause more damage?
Signed,
Non-mechanically-inclined guy