Reese6327, everyone who is a member here will tell you that you tested conclusively negative.
As CurfewX told you, the instructions state to discard test at the appropriate time. "There is a reason for that" as you now know. You are getting yourself worked up over human error.
Also latex condoms are proven to protect against hiv.
Relax, you are fine concerning hiv.
The test has specific instructions, including not reading it after a specific timeframe. You should have tossed it out immediately after reading it at the time suggested on the instructions. You are conclusively HIV-negative and do not need to test further.