I got pulled over the day I bought my first Camaro for no front plate and it had my other cars plate on the back. Because I was able to show him the signed over title dated for that day he said it was no problem. I asked him if doing that was better than not having a plate at all and he basically said not having a plate at all will assuredly get you pulled over. Using another cars plates is frowned upon but because I had the title with me he said you'll get let go 9/10 times