It's quite an polished game! I think the main gameplay loop is quite fun, I really like the addition of police in the game, it makes the game a lot more strategic and you need to lose them in the corners since they seem to rubberband quite a lot! I definitely think some sort of BGM would help the game a lot. Listening to the same car engine audio and skid marks makes the game quite boring even though the gameplay is quite fun.
I think it's also unclear on the collision with other cop cars. There isn't enough feedback to tell if my ram actually did anything or if I just damaged my car for no reason. Adding some sort of effect (both visual and audio cues) would make collisions a lot more responsive and more dynamic!
And of course I quite like the premise you themed around the count down theme. I feel like the narrative could be expanded much more to fit the mafia-themed package delivery better but for a jam I think it's already good!