Although filling an entire trunk full of peanut butter, let’s say 500kg worth (assume a 450 litre trunk and density of 1.1 kg/l according to Google), then adding all that weight over the rear axle would affect the handling and balance of the car, potentially making it dangerous and therefore illegal to drive.

So, it’s not actually that clear cut that it wouldn’t be illegal!

I like to imagine that it's not jars of peanut butter. Just raw peanut butter, sloshing around when it's warm.

I got a bunch of free Coca-Cola once, and some dude at taco bell overheard me say something about "all the coke I have in my trunk". He then tried to sell me some of his coke.

I fully expect a cop here might arrest you over that.

Is this peanut butter in little jars, big jars, bags, or just shoveled in like one giant trunk tub of creamy peanut butter?

The real crime is creamy peanut butter

Now if it was crunchy peanut butter, I woulda accused the guy of being a pervert.

Cop: You a spoon, shovel, backhoe, or “all of the above plus some” kinda person?

Second person next to a second car filled with milky chocolate: But hitting me was a crime.

I’m sorry, but this to me is same type of humor as those rage comics