There is limited free parking at In-N-Out.

What time do the lobby close

She'll need a health card from the health department, her social, and a form of picture ID if possible. She should stop in to talk with a manager and discus further how they would like her to apply.

No

No near Tropicana

Purchase of any prepared food in Nevada is subject to sales tax. Groceries don't get charged. Sales taxes are used in Nevada instead of income tax so that tourists help pay for infrastructure and operations of government to allow people to live together since humans can be real jerks when left without societal controls like police, fire, roads, and schools.