CA has a long way to go to use all it's numbers - the following interstates would need to be added:
I-705
I-108, I-208, I-308, I-408, I-508, I-608, I-708, I-808, I-908
I-310, I-410, I-510, I-610, I-810
I-115, I-315, I-415, I-515, I-615, I-715, I-815, I-915
I-140, I-240, I-340, I-440, I-540, I-640, I-740, I-840, I-940
I-180, I-480
add to this I-9 and that's 43 more 3dis you'd need.
and given you can have I-238, doesn't that mean you'd need 900 3dis to run out?
NY's exhausted all its I-x90s. I-5 in CA is next closest, and after that it's I-40 in NC or something.
Theoretically possible, practically impossible.