Nut, check with some of the local pro shops. in the summer i carry my bow with me in the truck and i can usually find an indoor range at one of them.they usuall;y arent the best set up but at least they are safe and legal.
I will be taking him to a local shop in the next month to do some adjustments to it. It has a indoor range there but it is still a 40 minute drive one way. Then we will be taking the bows with us during spring turkey camp to practice.
i got my son in to a habit of drawing every day 5 or 6 times just to tone the muscles. you have to be careful not to let go of the string without an arrow though. and dont draw if you are tired in case you can hold it