Parking at the Fireworks

I have not been to the fireworks since 1986, my granddaughter called and asked if I wanted to to go, of course I said yes. We went in by the District Court and parked at the State Hospital.  An awesome place to park ,everything  was popping in front of my eyes, great job Concord. When leaving I was amazed at the trash left behind. I would like to know why people could not take their trash with them when leaving. I was surprised that they were given a place to park, for a night of family fun and then ... these are the kind of people who will ruin it for next year and years to come  Clean up your mess, you made it!  Thank you State Hospital for sharing.....