Hey guys! I'll lay out the ground work on what my car has then I'll get into what it's doing!
I have a 2000 GTP around 130k miles with a 190 t-stat. No performance mods other than my intake. My AC went out a few years ago so I had the shop remove it and place a pulley in it's spot. My temps were almost always between the bottom mark (160) and second mark though they would fluctuate if I wasn't moving much... I also hardly ever hear my fans kick on...

Yesterday I was driving home from a large distance. About a 2.5 hr drive home. It was hot as balls yesterday. ~95 with 50% humidity - wasn't fun. On my way home yesterday everything was going great. Car was driving just fine. Mostly highway speeds 60 the entire time home. Last stretch of the road (maybe 1-2 miles) is highway where I could get up to 75. When I got off the interstate I stopped at the light then smelled coolant. I looked down and my temp gauge was sitting at 210 mark. Didn't go up, didn't go down. Got home and there was coolant all over inside the engine bay. I'm chalking this up to poor radiator cap. I could be wrong for sure. I did replace my water pump last year or previous year so I'm hoping it's not that again. I topped off coolant this morning and started to very carefully drive it down the road to check on it. The temp went up to 210 fairly quick, but it stayed rock solid the entire drive. I drove for about 30 minutes. I did drive a little bit with the fan on inside my car. I just cranked the knob to 60 and as usual the auto light comes on and so does the AC light. I clicked the AC light to go off because I didn't know if this had to do with any of the issues.

Any ideas? Could I have had a clog of some sort and it blew it open so now I have proper cooling temps and there's nothing to worry about so my car can make 100+ more hps??? lol! Thanks for reading!