I hate coming back to my car and having crap stuck on it.
I'd not do it. I'd be to worried I'd end up getting sued.
Person gets in a wreck.. Sez the flier fly up and blocked her/his sight.
Besides, you will put a lot of fliers out in a hurry, but how many of those will be renters, or teens.
I just think it is a bad idea, but that being said. If I offered a service that had to do with cars, like windshield repair... I'd place a small card if I saw a cracked windshield, like above.
Door to door fliers. I use to get about 2 per 100. I've not done it in year, but I know a guy that does them with far less results.
Is it the market?
Hmmm...
Go to the fair grounds, or convention center during the homeshows.. Perhaps that will bring a better demo for the car to car fliers.