SiDi: Interesting theory but how do you know that “All through the ????, although painful, ???? was still able to make this all important, early morning visit.”?
The DAAS ZEKEINIM BAALEI TOSFOS gives a different answer.
http://www.hebrewbooks.org/pdfpager.aspx?req=14362&st=&pgnum=96
HKBH warns the Mitzriyim to gather in their houses and anything outside will be killed. He warned us not to leave things outside and we did, showing that we did not believe in HKBH.