2 attorney answers
It appears you may be subject to the 3-year bar. Did you already obtain a waiver of your unlawful presence? Do you have proof that USCIS said you "wait for your documents in US territory?" You should definitely consult with an attorney before leaving the US.
Probably not but I am not understanding what you mean by USCIS saying you could wait in U.S. territory -- is this in writing?