Immigration Site

I am a green card holder and i sent i-130 application by fedex for my child to USCIS in Chicago;

I made a big mistake by sending it to (for concurrent filing)
USCIS
Attn: FBAS
131 South Dearborn- 3rd Floor
Chicago, IL 60603-5517

Instead of
USCIS Lockbox
Attn: SAI-130
131 South Dearborn – 3rd Floor
Chicago, IL 60603-5517

Another thing i did was to send a cashiers check instead of a personal check so wont know if they have cashed it. I have the signature and delivery proof from fedex.

What do you think I can do now, will they reject application, does anyone have similar experiences?

Please help, I am panicking now...

Thanks