I’m sorry but there’s No way even boomers get a pass. It’s been expected to return your cart to the stall for longer at least 30 years. In some places you even had to put $1 into the cart to use it and got it back when you returned it ($1 was also a lot more 25 years ago).
There’s really no excuse for not returning the cart today and anyone who fails at this simple task of self-governance is no better than animal.