HOW TO HANDLE LMR

Hi guys, I have no problem getting dates and make-outs pretty consistently, but I currently do not have my own place to pull the girl back to at the moment so I resort to the back of my car most of the time (maybe in a bathroom at some point). I remember Alex did a video about this once, but how do you guys get laid if you and the girl are living with family and you need to pull somewhere else? I tried the LMR trick in the PWF ebook, literally had my dick out and guided her hand on it as we were making out in my car, but she was resisting still. I thought that trick might have solved it, but I probably need to do something different and I'm not sure what to do. Is it probably because some girls are comfortable doing it in public parking lots lol? PS it was dark af there though.