We seem to have a ever-changing population of spiders in the side mirrors, so either they die fast or go away (or fly away when you drive) or get eaten by another spider fairly often.
Same here! One spider hung around for almost a month in the side mirror. It's kinda fascinating who will turn up :)
I think they hold out longer here, but maybe because I never drive fast ;) Last year we had the record: It seemed to be one spider holding out for most of spring and summer. Have seen her 3 or 4 times. One day I would drive, the net flying away, the next it would be back. Very productive little thing. I cleaned the mirror a dozen times and even more often just ignored it (the nets sometimes survived the "slow" in-town driving).
1) It is very unlikely a mirror spider will get into your car. If it stands, you have the windows closed. If you are driving and have them open for air, the spider would not come out I think (or just blown away). It must feel the heavy vibrations and think its storm, dont leave the home. (Well, the one I mentioned above came out once while driving outside town, but as I said, it was a really tough little one. Have seen such a thing only once, and it didnt leave the mirror inside.)
It should happen more that a spider cames from down of your car, where it is open, to the inside, and how often do you have that?
= no reason to go heavy on mirror spiders
2) If you are so fearful of spiders, do the mustachian think, look the fear into the eyes and punch it on the nose!
You can use a pro, or insource it and train yourself ;) If you see a big spider the next time, look at it. Feal the fear and also see that it does not jump on you to bite you. Wait until the fear goes down a bit. Take a step closer. Do you see the spider? I mean, do you really see it? Her long legs (yuck)? The body? Watch it closely. Watch your fear, see that nothign happens, watch the fear slowly go down.
And so on. After doing this a few times, after a few month, you are probably able to touch its legs.
I was fearful of spiders as a kid, now I can take them on a hand and release them into the wild. It is not that I like that, and frankly I do it more because I dont want a smashed spider then because I have such a big heart for little creatures, but I think for the spider it doesnt make a difference ;) For me, it does. Fear is a good warner, but a bad advisor and even worse ruler.