ANSWER:

You can’t pray in the car without a valid reason as standing is one of the pillars of Salah. 

You should have enquired about men’s prayer hall or prayed anywhere standing. 

I was in a shopping mall when the time for maghrib came. They had a prayer room. When I went inside I saw women in the back, and there was no partition. I didn’t know If i should just walk to the front and pray there or not. I just decided to pray in my car. Did I do the wrong thing.

Prayer | December 25, 2017 5:38 pm
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Do we have to pray tayitual masjid 2 rakats if we are praying the 4 sunnah of dhur, 4 sunnah asar or 4 sunnah of esha? All in the masjid instead of praying the sunnat at home? Can please clarify?
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Sheikh are we supposed to keep quiet on the first adhan only or if there are 3 to 4 masajid in our area and they give adhan one after another so we should still keep quiet till all of them are finished. and answer them all. please guide me