Should I be worried?

Towing about 6k normal speeds nothing about 65. I don't speed towing.
I noticed a small drip trail behind my truck where I had inched forward for about 30 feet went under and noticed this.
After letting the truck cool down it hasn't dripped at all and looks about the same in that spot.
I'm about 2 days in into a 5 day project. About 300 miles of towing I have to do before I can stop at a stealership. Shoukd i just stop now and go in tommorow and get screwed by the holidays? Or continue on and baby it till I can get it looked at?
2016 5.7 174k miles.

 

I’m impressed you have 174k on a 2016. Damn

 

Its fine.