It might have taken a lot of time to get to safe haven, but the important thing is that you are able to reach it. Now, the safe house needs more people to have a community. In these times, you will need lots of ammo and supply to have a community. You are among the people that have the vehicle to collect more ammo and supplies, so you need to collect more and return home safely.
Drive your car as fast as possible. Grab as many money as you can. There are also other power-ups that you can use on the driveway. Kill as many enemies as you can. Upgrade your car as soon as you have enough money since you will need it.