Since to get can replace to arrive (e.g., sense 11 in LDOCE: "to arrive somewhere"), do you say "I got in Tucson last night" or "I got to Tucson last night"?
It is very rare that I hear native English speakers (of any English speaking country) to use "in" instead of "to" when it comes to directions of movement or destinations and places. "In" is more typically used by non-natives and they take it from their own language, simply translating their usual prepositions into English, which is a well known phenomena to all of us, I believe.
got is not the best word in this context, but if you insist -
I got into Tucson last night.
would be better. You went from outside the city to inside the city.
got to might be OK but only in informal speech.
When you write "I got in Tucson last night", it seems like you were trying to say:
I got (something) in Tucson last night.