Question about a smell in car!

So I’m laughing because it’s better than crying lol. At 2pm today I stopped by our local Mexican restaurants drive thru to get my to-go order. I noticed a truck a few feet from the drive thru window but didn’t think anything. I couldn’t see the writing on it lol. As soon as I was paying for my food, and waiting on the guy to retrieve and hand to me, I realize… it was a septic service and they were pumping the system! OMG the smell! It just took over. Even now at 6:30 my entire vehicle smells like SEPTIC SYSTEM inside. How!?? How can I fix this?! Not to mention it’s been about 96* outside and will continue to be for the next week. So. Horrible. 😂