Infuriating! I had the same issue but found Miss Muffet’s Revenge a few years ago. One spray of my cameras and house lights in the spring and there are no spiders for the year!! My biggest false trigger now is moths! Good luck!
Wet & Forget, Miss Muffet's Revenge Spider Killer
https://www.amazon.com/Forget-803064-Muffets-Revenge-Spider/dp/B00FGIJXK4