Um yeah if you can't magically unlock it with a tennis ball just get a friend to drop you at your car. Call a locksmith or AAA or whatever to come unlock your car. Pay him however much it costs and wait as long as it takes. Almost the only way to guarantee your mom doesn't find out. As for whoever it is unlocking your car maybe seeing your bowl...fuck them. It's not there job to judge you or make assumptions. They'll unlock your door get paid and be on their way before they even had a chance to do somethin about it even if they could...

Stay high