You might want to invest in a freezer temp alarm or two. I have 3 freezers, so I have two dual units. There's fancy ones that send you a message when something bad happens, I just have a cheap Wyze cam pointed at the display on mine, and I check it a couple of times a day when away from the house.
I mention this because it is around 90F at my house, garage is on the afternoon sunny side very hot. In the afternoon the freezers are at 3, 10 and 8. The 3 is my newest, the 8 is my oldest, and then the 10 is my not too old upright that is usually down around 0. It started acting up the day before we left on our current vacation. We didn't have time to do much to it, just moved stuff away from it so it gets more air and put a fan blowing on it to try to help the compressor.
I mention this though because if you have a frost free and it runs a defrost cycle it will get several degrees warmer, and if its older its not going to be as cold, so you would need to watch that one the most. Plus you could have the temp sensors in while you move, giving you peace of mind that stuff didn't thaw.