Stuck in traffic 340 got up to 220

Hi everybody:

I never drive my car in this kind of heat, probably 95' F but I was coming home from the shop. Things were okay going along at high 180s until I got stuck at a light the last mile from home when it got up to 220. I was lucky though to pull over and shut down in another trailer park under a big tree in some shade where I just sat for an hour where the temp kept climbing to 230 even though in was shut down. After an hour it was down to 180 and rush hour wasn't too bad anymore so I left the trailer park but the pace was still pretty slow. By the time I reached my place it was up to 200...not too bad. Things seemed perfectly fine. I ordered a better fan about a week ago and a I'm getting a shroud made too but I'm not driving around in that traffic again that's for sure! Do you think anything might have been harmed is what I'm wondering about?
First off, don't turn off the car. Parking under the shade, opening the hood and letting it idle will drop the temp faster than turning off the motor. 50/50 coolant with a good rad cap won't boil at 230 Deg F. Your engine is fine,