Yes, provided you have the visa issued at the US Embassy in Mexico City, and the package you are delivering is legal to introduce into US' soil (i.e: no drugs, weapons, nor explosive materials).
So days deliver to
6 to 10 days
14 days
Yes, you can.
Was actually wondering about that myself.
1 to 14 days or more
Oh yes, it is quite easy to drive to Mexico from the US and many people do.
you drive their
Yes, you can drive in the US with a Mexico license as long as it is valid and meets certain requirements, such as being in English or accompanied by an International Driving Permit.
1 to 14 days or more
None, unless canned or in the original package.
You can bring bagged tea from the US to Mexico. It however, should be within its original package to prevent customs agents from confiscating your tea.