It rains on us almost every time out, it's like a "thing" for us now. Lately it hasn't been a deluge like you had, but it sounds like you handled it just fine.
+1 on the command hooks. While you're at it, get a couple extra for the shower. We use them in there to hang our loofahs, but if I had a wet raincoat (or swimsuit, or whatever), it would hang there just fine.
+1 on greasing the hitch ball, it solves all manner of problems. Be careful jumping around on your bumper, things that are under lots of tension or load tend to react unpredictably when that tension or load is suddenly released.
2014 Jay Flight 28 BHBE
2015 RAM 2500 6.4L HEMI, Tradesman 4x4, 3.73
Blue Ox SwayPro (BXW 1503)
Upgraded from an REI internal frame backpack and a Eureka 1/2 dome tent!