Not sure if anyone else has had this problem, but I finally found the solution to my alarm going off by itself completely randomly. If this saves only one persons from pulling their hair out, then that's fine.

Long story short, I looked at the hood alarm switch and noticed its o-ring was cracked and slightly slipping out of its groove. Figured out when I washed the car, enough water would splash into hood vents, bounce off the wheel well splash guard and go into the switch. This was causing a short and triggering the alarm system. I ordered a new switch from Dodge and it only cost $17. It had a newer style mount, but I was able to transfer the mount from my old switch to the new one with a bit of work.

Alarm system now works without issue. Sanity restored.