Sorry Guys I neet to Vent my Girlfriend Problems

So me and my girl kayleigh have been dating for three months now as of Sunday, she's 16 as of last month and I'll be 18 IN NOVEMBER. I love her to death, I really do, but her parents make it a humongous pain in the *** to even be with her. The obvious lack of trust is begining to really aggrivate the living piss out of me. It took an act of congress for her parents to even let her ride in the same car, actually it took prom. Whenever I leave her house, be it at her dads house or her moms, she walks me out to the car to say goodnight and we get literally TWO MINUTES before little sisters come running out here to say it's time to go inside. God knows if we have three minutes we're gonna have hot freaky sex right there in the driveway! Not too long ago I asked her mom if she could come with me to a DCI (Drum Corps International) show in Rock Hill SC which is 45 minutes south of us and stupid me thought maybe because her mom will barely trust us together in a car together that maybe, just maybe, I could have that. "But what if something happens" says, "that would come back on you" and I'm thinking "newsflash, accidents happen in NC to. They happen in Lenior (where she lives) they happen in Icard (Where I live) they happin in Hickory and Morganton and Rockhill. They happen when you drive, they happen when she drives, they happen when your stupid *** boyfriend who cant drive gets behind the wheel with you and your three girls in the car and you're telling me you're worried about an accident?!?" Now even though the douchebag boyfriend was kicked to the curb in another long story, now I have to worry sick over Kay having her license and driving all on her own. Now today I ask if she can drive over here tommorrow, cause we can finally take advantage of me not always having to drive to her, and my mom is out of town helping my sister with a broken knee cap and my dad might be at work. Leaving an empty house all for us. But GOD FORBID that happen cause not only will her mom not let her, but she just can't pretend that my dad is home. What's more this is the 5th or 6th time this bulls%#t has happened it's begining to make it a total pain in the ***. I told her I'm getting really sick of even asking her to come over because the threat of parental abscence is ever too often present and it only leads to us both feeling like ****. I told her this and she says maybe I should get a girlfriend who'
s parents don't care, honestly I wish it were that easy to find a girl who's parents actually trust her and just up and leave mine... I'm sorry to vent guys but I'm just flat out pissed and scared that one of the best things in my life is possibly about to come to end and it couldn't happen at a worse time with the depression I've been battling. I swear I'm so close to losing all hope. What should I do?

Here's a pic of us before prom.