Can a foster parent leave a foster child in a care center at a gym?

If the child care center is being used for it's intended purpose, i.e. providing child care for a certain amount of time either for a fee or as part of a membership service, there is no difference between the foster parent and a biological parent. There is no law prohibiting foster parents from utilizing child care services. If you are instead questioning the propriety of the location of the child care because it is in a gym, as long as the care center meets the requirements set down for child care providers in their state there is no problem. If the foster parent does not have an agreement with the care center to provide care and instead is just dropping the child off, this is not okay, and would not be okay for a biological parent eiither. It then becomes the responsibiity of the care center employees to contact the proper authorities to report the problem.