Free Kick Question

[MN BB Ref]

Thank you for your collective thoughts. As I said, this seems like it should be illegal, but we couldn't come up with a rule that specifically prevents it so none of us threw the flag. I guess it turns out that we did the right thing after all.

Heck, the coach even told me he was going to do this and asked me about its legality immediately before the kick. I told him that it seemed illegal but I couldn't quote a rule so I wasn't going to throw the flag.

Thank you all for your help!