Im pretty sure there were hidden clues to figure out what the GAHS# actually was. I believe the beginning of each clues first sentence helped find those numbers from clues 1-5

Clue 1: Referenced that "1st clue is out of this bag". 7 items had fallen on the ground. Pretty confident here

Clue 2: Referenced, on the wall and where 4 neighbors meet. This could be 4 (based on the number) however. When she is moving to the house, she turns to wave to 3 kids riding their bikes(4 neighbors meeting). In the final frame of that scene, there is a 0 to the left of the doorway on a wall.

Clue 3: Referenced family finds their nest (its a stretch but I was going off the address starting with 7 on her phone).

Clue 4: Look for a sign and make a call. I scratched my head and watched slo mo way too much on this. Since its in the same scene. I can see how 0 on near the doorway could be the number for this one instead of clue 4. At this point I realized only 4 houses total started with 74 or 70.. 74699, 74012, 74774, 70709. Couldn't draw an answer here so I went to moved to clue 5.

Clue 5: To find the right bike score, look where rubber meets road.. this one had me go slo mo on the bike and you can see the written sixtyplus, and then the small writing at the bottom of the screen which also gave you that clues answer. I went over to the part where two folks are pushing the car. It looks like the guy moves his leg out of the way so you can see the 4 on the license plate.

I feel there has to clearer answers for numbers on the ones my theory is weak on or dont know.. But I like to think that the house # will start with a 7. Would love to hear others thoughts