Never had this on a car seat but have had people throw up in my car. The best thing to suck the smell out for me has been these charcoal bags on Amazon,
Angbo Activated Bamboo Charcoal Air Purifying Bags for Home, Car and Office, 8 Packs https://www.amazon.com/dp/B07QHT1GHS/ref=cm_sw_r_cp_api_i_GJlaFb8VFVHHZ
I use them everywhere that smells funky, put them in storage boxes so things don’t smell stale. To “recharge” them, you put them out in the sun.
Man you could have got some inexpensive carbon bean bag things from Amazon placed them in the grow room or tent or both or through the entire apartment something like this https://www.amazon.com/dp/B07QHT1GHS/ref=cm_sw_r_cp_apa_i_6km7EbWA6QY2J even seen some for 20 bucks with 10% off coupon for additional savings.