I would be so pissed off at my friend if that happened....but you should have just toked in your car in a safe spot. but then again if they watched you pull up they probaby snagged your license plate digits, so you were bound to get caught anyway. but your also right about your friend chucking his tin, if he did that you could have got out of all that shit. as if a stoner cant jump a fence ha ha.

I have no idea about the legal aspects, depends on your area, age, the juges attitude towards the offences etc, running from the cops really really adds to it though so i would probably lie my way out of that if you have a fool proof plan, they dont like liars so dont get caught