We tried that in the car park near us one sunday night, place was empty apart from us but we only just started a couple of timed runs when a cop car pulled in and told us to move, i barely had time to hide my joint!
We werent being rowdy, noisey or causing any bother and its an industrial area but they told us we could damage the carpark or signs if we crashed into them
. The cops were ok about it, just following orders, kinda felt like they didnt want to moce us but had to because some dick who operates the cctv had called them. Now we just "race" on the streets instead