Make sure you are outside. Set spawn point to last location and force a save by changing your outfit. I Have been playing around with the old casino glitch (i will name the founder of that glitch when i find him/her) I have only been able to drive around with the Stromberg. All other cars have respawned but wont move. I have only tested a few other vehicles. Once you get out of vehicle you wont be able to get back in. No vehicles can lock onto you, they cannot see you.
- Go to creator mode. Highlight Exit to grand theft auto V. Press pause an go to online and then play gta online, then spam A on whichever lobby you want to play in.
- Take your vehicle to your arcade and drive it into your garage there. It will then spawn again outside but be invisible.