Spawn car on the road in proper direction?

So i am making a Basic Actions plugin, where you have some basic actions like, Towtruck and other services, so my question is, how can is spawn a towtruck so he is the right way on the street and there is no need to turn around. How can i achieve that, by spawning it with a PoolHandle(i dont really know how to use it)? I tried to get nearby vehicles at a random position to use their heading and position, but it crashes, i think because the position is too far away and there are no cars. Please help me!