If you are living in a car or van, Dreams for Changes (PDF) may be able to help you find safe parking.
That PDF is a San Diego specific resource. Here are a few more general tips:
You might also benefit from checking out /r/vandwellers/. Most Walmarts allow overnight parking. If they are open 24 hours, this gives you bathroom access overnight.
Some highway rest stops allow overnight parking. Look for at least three places to park and don't spend too many nights in a row in the same spot.
That PDF is a San Diego specific resource. Here are a few more general tips:
You might also benefit from checking out /r/vandwellers/. Most Walmarts allow overnight parking. If they are open 24 hours, this gives you bathroom access overnight.
Some highway rest stops allow overnight parking. Look for at least three places to park and don't spend too many nights in a row in the same spot.