so i thought i had a flat tire but it was..... Options

[mrgrape]

so i was driving back to san diego from LA
and suddenly i hear a thump thump flat sound from my front left tire
i was like wtfffff and i pull over and check it out and it doesnt seem flat....
so i keep driving 10mph all the way from LA hopefully thinking i dont have to replace my tire
b/c at that moment i took out the spare
2 days later
i had my friend spot me while i was driving and he found a huge ass nail stuck in my tire....
so what do i do now???
remove it?

[mrgrape]

so should i replace it with my spare????
or how do i go from here other than the patch cuz im a total noob