And likely not at the top of the check list either if you wanted to slip away. As evidenced by supposedly being waved through into estonia.
Russians do say (with video evidence) that a border check (the normal type) was accomplished, but there was no ‘look-out’ established at that point. She was required to get out of the car...show papers, and put the suitcases on the ground.
A lot of this story looks scripted and fake. What secret-agent gal would take her 12-year-old daughter with her? Or was the 12-year-old kid really a 20-something secret agent gal as well?
Then you wonder, once in Estonia, now what? Do you stay there, or hop a ferry or fishing boat to Finland/Denmark/Germany?
Maybe this gal is like Oswald...hired for something and not realizing what the true purpose of the mission was in the end.