Spoofing snapmap location on iPhone

I used to jailbreak back in my prime. This phone is fresh.

To cut a very, very long story short, I’m playing a game. People are trying to hunt me down in said game. Most people playing are just turning their location off, but I’ve convinced everyone I don’t care about winning ($1000, mind you). I want to freeze my location at home so people will drive there while I’m at the gym.