my friend is mad...was I right?

met up with my female friend (im a f) last week, we decided to go for a 30 minute walk today but since then the weather in LA is record high at 115 degrees for a few days. due to the scorching heat i assume that no one would want to be randomly walking in the street at 4pm in the afternoon. It's really bad here. So i didnt contact her today (Monday) to check in regarding 4pm plans we had, and didn't hear back from her until 4pm telling me that she's next to my house having iced coffee. I was surprised since i usually touch bases about going out earlier any day we decide to go so i dont know why randomly she would come next to my house at 4pm wanting to walk in this crazy heat...there's nothing pleasant for me to walk in the heat and i already did my exercise at home (walking was the exercising for us) so im safe in my house under air conditioning. I felt that she got upset but im more annoyed that she wouldn't bother text a few hours earlier at least to double-check if we are still on regardless of the heat or not. I always touch bases the night before or early the day of the plans but i never contacted her neither did she until 4pm. Am I right to be annoyed too since it wasn't that hot a week ago so we both didnt know about the 115 degrees today. I dont see how a normal person would enjoy walking under the sun. I know I don't. Am I not right?